I purchased the upgrade for the 767-300ER PW from the MSFS 2024 Marketplace, but now all my liveries have disappeared.

Initially, I left the folders as they were in MSFS 2020 and updated the layout.json file. That didn't work. Then I downloaded the 767-300ER and noticed that the folder structure had been adapted to MSFS 24. So I changed the folders to the 24 format and updated the layout.json again. Again, no luck, since a livery.cfg file is missing. So I created one, but without the "required tags," that won't work either. I hope someone can help me and that I haven't just wasted my money.

Thanks for your help :).