It seems like kubejs used to load all my textures from my assets folder, but now it doesn't. Particularly those related to the gui but in general there are a lot of missing textures that were working fine before. I was on kubejs-forge-1902.6.2-build.15 and went to kubejs-forge-1902.6.2-build.42
No errors in the logs other than missing assets expected for the UI (menu screen panorama files for example).