Anyone else getting a 'Livery limit' message lately?

[IcarusDragon]

So I was playing GT7 the other day and went to build a new helmet livery. Went to save it, however, and I got this message out of the blue:

I went through my design list, got rid of a bunch of older stuff from my inventory and shared catalogs, then tried again. Got the same message!

Apparently, this only applies to my helmet catalog and neither the cars or suits, but I have no idea how to clear it. Any assistance would be appreciated!