Thank you for the answer Randolf.....I have all 40 cars in a custom championship I made....they all run, but the 2020 F1 cars have scrambled graphics.....The 2021 cars look perfect.....I believed it was a CAS problem as they both have the same CAS names for the teams.....so I renamed the 2020 cars CAS files but then they CTD with an error for SLOT 38 (happened 3 times in a row). I renamed them back to the old name and they load fine with the 2020 cars having scrambled liveries.....The most interesting thing about this is the ONE of the 2020 cars looks perfect....its team mate car is scrambled....that is the Grosjean Haas....that is very strange to me that 19 cars are scrambled graphics but 1 car is perfect....Going to do more experimenting, but at least I have the 2020 and 2021 mods running together. The results are pretty realistic also, so great job on that....What I did is made a vanilla GTR2 version (I now have 16 different GTR2 loads on this computer) and it didn't run.....so I added the 10th anniversary EXE to the vanilla game and I will be damned it worked. So while all the cars might now look the way they should, they all run, and they run competetively.
Scott in the Philippines