1. Please describe as detailed as possible what you did and which problem that leads to.
I'm trying to repaint the Tatra KT4D , however there appears to be some kind of bug with it. When I select this tram in the ContentTool > Mods > Texture change, this message pops up immediately:
lotus-simulator.de/index.php?attachment/9856/
This error does not appear with the default GT6N and workshop Ezres trams. I can use the tram in the game without issues.
