Project cars 2 bug report Q&A

  • Thread starter TDZdave
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Yea first came up with the Porsche pack but I was curious about other cars.er how big this issue is that we stumbled upon... and what's more worrying is that it wasn't found earlier.
 
DesertPenguin
Yea first came up with the Porsche pack but I was curious about other cars.er how big this issue is that we stumbled upon... and what's more worrying is that it wasn't found earlier.
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Ok, so I searched Audi S1 slow and found this.

"Back to the turbo issue, there is another workaround, slightly less painful perhaps - it turns out that it's not actually selecting the affected car in itself that triggers the issue, but highlighting a specific different car (or cars) as you navigate to it! I know this is weird, but bear with me ... the following are instructions from QA for the affected cars. Essentially it means changing the vehicle filter to "group by classes", then highlighting the class specified below, before attempting to select the car in question. Following this method means you can select the problem cars "normally", without having to restart the game."
"EDIT - the "cars to avoid" essentially are the Porsche 936 and Audi 90 IMSA - once you've highlighted one of those in the car selection menu, the other Porsche turbos, or the Audi S1, will be broken for the duration of that game session."

Link the the PCars forum where it was found
 
This is something I've replicated a few times and shrugged them off as too random to bother with but I caught this one on the game recording.

Basically I've noticed that sometimes when you set the power diff really low all kinds of cars behave like top fuel dragsters on the power! Seriously. The only way to fix it is to close pc2 and relaunch it. Fortunately I've only had it happen in fp sessions.

It feels like the physics have gone down a divide by zero black hole and erratic things happen over even the smallest bumps...

Naturally the cars are then completely undriveable over the rest of a lap.

Pulling wheelies for e.g.
 
mattikake
This is something I've replicated a few times and shrugged them off as too random to bother with but I caught this one on the game recording.

Basically I've noticed that sometimes when you set the power diff really low all kinds of cars behave like top fuel dragsters on the power! Seriously. The only way to fix it is to close pc2 and relaunch it. Fortunately I've only had it happen in fp sessions.

It feels like the physics have gone down a divide by zero black hole and erratic things happen over even the smallest bumps...

Naturally the cars are then completely undriveable over the rest of a lap.

Pulling wheelies for e.g.
Click to expand...

Check what happen if you lower all video quality settings to lowest and option for best framerate on, I'm currently investigating chassis/suspension changes after that change, i think at I'm feeling few cars to change their behaviour drastically to better after that change, going to check which options can be switched on for "good" / "correct" physics calculations.
That your wheelie is just easy to check if it stops after such changes.
 
OdeFinn
Check what happen if you lower all video quality settings to lowest and option for best framerate on, I'm currently investigating chassis/suspension changes after that change, i think at I'm feeling few cars to change their behaviour drastically to better after that change, going to check which options can be switched on for "good" / "correct" physics calculations.
That your wheelie is just easy to check if it stops after such changes.
Click to expand...

Yep I set all my graphics options to minimum months ago in the hope it improves fps/spare clock cycles. Very difficult to see if it made a difference but I do seem to have encountered there oversteer bug less. However the randomness of these bugs makes them difficult to catch.

Discovering this one has been only due to recently playing cars that I find need low power locking on the diffs (and low visco settings) and nothing to do with bad luck. In fact only a few days ago I managed to get this in the lotus 72. It didn't wheelie but it was treating bumps as if the car had no dampers. Completely undriveable.
 
Not seeing mention of these anywhere, probably just not good enough at looking.

I finally started the career and picked karts to get that out of the way, and immediately at the start of every race it says I have severe damage. It doesn't seem to actually affect me... well it did at Glencairn but I think that was more to do with the 20 tons of dirt the bots dragged all over the track on the first lap than anything else. Is it just "one of those things?" I'm running stock stable setup in the kart with just gearbox tweaks.

Am I also correct in assuming that it's not possible to do a custom race in karts? I wanted to try doing practice with the bots since the career still gives you no practice which is kind of silly for a random start position in a short race unless you want 50 restarts every time. I can pick the kart tracks in private testing but not custom race. It probably wouldn't let you practice anyway because no pits, so it would be like the Nordschleife or the point-to-point tracks.

At least they drive a bit better than in PC1 as long as you stay off the curbs. And the dirt in the middle of the track.
 
mattikake
This is something I've replicated a few times and shrugged them off as too random to bother with but I caught this one on the game recording.

Basically I've noticed that sometimes when you set the power diff really low all kinds of cars behave like top fuel dragsters on the power! Seriously. The only way to fix it is to close pc2 and relaunch it. Fortunately I've only had it happen in fp sessions.

It feels like the physics have gone down a divide by zero black hole and erratic things happen over even the smallest bumps...

Naturally the cars are then completely undriveable over the rest of a lap.

Pulling wheelies for e.g.
Click to expand...


Is this reproducible for this car and does it only happen with high diff lock settings?
Does it also happen when you're activating the spool diff (essentially 100% lock)?
 
Bealdor
Is this reproducible for this car and does it only happen with high diff lock settings?
Does it also happen when you're activating the spool diff (essentially 100% lock)?
Click to expand...

See previous post. It s reproducible. Nothing to do with spool (also tried spool as a fix/test to see what would happen)
 
mattikake
See previous post. It s reproducible. Nothing to do with spool (also tried spool as a fix/test to see what would happen)
Click to expand...

Could you please try the Lotus 72 with the same diff settings but power ramp set to 30° and report back if it reacts as severe as the Pro Car with these settings? I'm having a suspicion what it could be but need confirmation first and can't test it myself currently.
 
Bealdor
Could you please try the Lotus 72 with the same diff settings but power ramp set to 30° and report back if it reacts as severe as the Pro Car with these settings? I'm having a suspicion what it could be but need confirmation first and can't test it myself currently.
Click to expand...

Hi. Not too sure what you mean. Set the Diff to preload 0-20, coast <whatever> and power to 30, instead of power at 20 or 35?

If it was the lowest setting I thought it could mean the loaded wheel is losing traction violently and somehow it's reacting to bumps you can't normally detect, yet 35 deg is not as low as 20. But as far as I can see it's random lap to lap and if I restart the session I can run with the same settings and it will either bump like this or not at all. :s
 
A small bug persists from the first game: When you turn your lights on for a race, drive a bit then restart the race your dashboard/wheel will still be lit up but the headlights won't actually be on. So every single time you restart it looks like your lights are on but nope, you have to press the button a few times until they actually are illuminated.

Just highlighting it as it's exactly the same bug as in pCARS1, even though very minor.
 
Morgoth_666
Am I also correct in assuming that it's not possible to do a custom race in karts? I wanted to try doing practice with the bots since the career still gives you no practice which is kind of silly for a random start position in a short race unless you want 50 restarts every time. I can pick the kart tracks in private testing but not custom race. It probably wouldn't let you practice anyway because no pits, so it would be like the Nordschleife or the point-to-point tracks.
Click to expand...
You probably have one or more classes highlighted under the Multi-Class option; I ran into that bug a while back:
Wolfe
With the new update, kart tracks are now thankfully available in private testing no matter what you're driving (@eruvadhor). :)

However, in a custom race the kart tracks will remain hidden if there are any non-kart classes added under the Multi-Class option, even if you have the kart selected and the opponents set to Identical or Same Class. You have to clear any other classes from Multi-Class first.
Click to expand...
 
mattikake
The physics problem happened again in the lotus 72 but I captured it this time. Not as extreme as in the procar but undriveable nonetheless.

Click to expand...

I have had this happen to me multiple times in the indy road course car. I thought I was running over invisible debris as that is what it feels like. The car bucks like a bronco. It is completely undrivable in this state.
 
Wolfe
You probably have one or more classes highlighted under the Multi-Class option; I ran into that bug a while back:
Click to expand...

Thank you, that was it. I haven't done many multi-class races but I guess the last one I ran was multi-class. It would be nice if the "clear all" button actually did something but I guess that's too much to ask for. Once I cleared them out individually it took care of it, now that I'm almost done with the karts I can check out the AI's highly variable pace before the last couple career races if I want to. :)

Also, lol @ low speed wet physics with slicks on the karts. Swing-and-a-miss there.
 
Hi guys not sure if anyone had posted this before I did a quick search couldn't see anything.

So the problem is when I play Assetto Corsa or even GT sport. I can feel the front tyres pushing the car when I accelerate out of corners but in Project cars 2, for cars like the 918 it feels like only the rear tyres are working. I noticed this when I raced with it in Porsche Proving grounds. Has anyone else faced this issue? Is it because I'm doing something wrong?
I use the Logitech G29 and play on PS4. Please let me know if you require any further details with regards to this. Thanks in advance ☺️
 
Auto Clutch is affecting more than it should to the best of my knowledge. In GT3 cars at least, turning Auto Clutch on will cause the game to auto blip more on downshifts and cars are slower down the straights. In the setting description it only mentions preventing stalls in cars with sequential gearboxes, as in cars that don’t normally use the clutch to shift. With Auto Clutch on you’ll be slower over a lap. Something strange is happening here.
 
ozwheels
Auto Clutch is affecting more than it should to the best of my knowledge. In GT3 cars at least, turning Auto Clutch on will cause the game to auto blip more on downshifts and cars are slower down the straights. In the setting description it only mentions preventing stalls in cars with sequential gearboxes, as in cars that don’t normally use the clutch to shift. With Auto Clutch on you’ll be slower over a lap. Something strange is happening here.
Click to expand...
Interesting. Will give that a test
 
On watching a replay of some practice laps I noticed my car was progressively losing power, with mechanical damage off. What's going on here?

(btw, just practice so no lap critique please. I could consistently lap in the 1:53s shortly after this. Waiting to see if that gets beaten in the league race before I post it as a hot lap)

 
mattikake
It's the way the bugs always screw your race up that hurts. It's like you need a checklist of issues outside of actually racing.

Click to expand...


The simple solution is to check you have repair damage turned off in the pit strategy before the race even if your racing with damage off.

Did the lobby have mechanical failures on but damage off?

Could it be that it still repairs your brakes even with car damage off?
 
hasslemoff
The simple solution is to check you have repair damage turned off in the pit strategy before the race even if your racing with damage off.

Did the lobby have mechanical failures on but damage off?

Could it be that it still repairs your brakes even with car damage off?
Click to expand...

The lobby host didn't select "wait for race ready input" inbetween quali and race but I didn't know that until it happened so I ended up with the default pit strategy. I'm guessing mechanical failures were on (in which case why was it greyed out at 0%?) so I think it must've been repairing engine damage. Doesn't change the fact that the indicator needs to be working properly and this is such a simple bug fix. Surprised no-one has mentioned it before that I remember or that it has been missed of all the patches. This could take 5 minutes of effort to fix because it will just be a switch.

Well you learned from these things, so I'll be trying to set a pit strategy before the end of quali now. I always seem to discover these... intricacies... when I'm leading a race or sat on pole or something!
 
After patch 4 finally being able to enjoy this game. As far as trophies I have almost all offline trophies besides the winter soldier. I drove a lap in 7 minutes without hitting a kerbstone and it still didn't pop. Any settings I might have wrong (penalties are on, tried both in private testing and custom race in the winter in snow)
 
Blob_91
After patch 4 finally being able to enjoy this game. As far as trophies I have almost all offline trophies besides the winter soldier. I drove a lap in 7 minutes without hitting a kerbstone and it still didn't pop. Any settings I might have wrong (penalties are on, tried both in private testing and custom race in the winter in snow)
Click to expand...

I got the Winter soldier just yesterday, private testing with the P1 GTR in 7m04s. I actually ran wide the second-last turn, invalidating my lap afte a perfect run, yet it still triggered the trophy. Mak sure Season is set to winter, weather set to snow.
 
That's really bad timing for going off track. :D
You gained a position and immediately went off track afterwards. That's why the game thinks your "overtake" was illegal.
 

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