i had to reset my pc so i moved my trainz file with all my assets to a portable hard drive and after i had reset my pc my operating system changed to windows 11. but now almost half of my assets are faulty and will not work and one basically every single one has a message saying ve48:this asset uses an obsolete trainz build number . trainz build numbers below 3.5 are no longer supported. so i downloaded some assets on a brad new file and they have the same message but they are not faulty and i don't want to lose all my old stuff i have worked on for over a year. i am not sure if ti is the portable drive or if it is windows 11 and i need to go back to windows 10. i dontknow if any body know what i should do but pleas i need help