Subject: CUSTOM LOBBY ONLINE ISSUE - INVISIBLE CARS
Yesterday, I tried creating a lobby to play with my dad (we both live in different provinces). When I was the host, he would be able to join the lobby (I'd see him on the list on the right), but when going on the track, he would see me but I wouldn't see him. And if I would be to crash into him, he would be hit (in his screen), but on mine, it's like nobody was there. And when I would try to "start the race", it would show an error saying that I can't start the race alone (even though he was listed on the right and were ready). We tried having him create the lobby instead, and it worked once, but then, any time we tried after that, I wasn't able to join the lobby and would get stuck in the loading screen. We tried for a few hours, and had only 1 successful race when he was the host, otherwise, it never worked after hours of trying.
To make sure it wasn't issues with our router or machine, we both reset our internet and our consoles, but it did not fix the issue. We verified and we are both on the latest software update for our console and on Gran Turismo 7 (1.19). He is on PS4 and I am on PS5. We also tried to create public and private lobby, trying various tracks, various configurations like weather, etc, but nothing worked. We also verified our internet connection and both our connections were working as intended (connected to PSN, nat 2).
We tried joining "meet" lobbies, and were able to join successfully on global or North America servers for various tracks, so we ended up improvising races in meet up lobbies instead. So meet lobbies are fine, but creating custom lobbies is having serious issues (potentially cross ps4/ps5 connections). We used to play every week with custom "father son" lobby, we must have played 20+ times like that, so this is most likely a recent issue.