Thanks for coming back to us @Grymlock my apologies I skipped over your original post from March where you mentioned deleting/resettings the config folder and clearing the cache.
In regards to the Config file deletion, in most of our games, when launching the game again after deleting this file, a new config file would be generated in its place, however, this is the first time I've heard of the creation of a new 'Trackmania' file, so this is something I can ask our QA team about our current investigation we opened for your skin issue.
Could you let us know what Internet Service Provider company it is you use, as our Trackmania team always like to gather this information on a players connection for most issues?
Thank you for also p...