Problem with white materials after lighting build

Hello, as a side project I am trying to replicate a room from Metroid Prime 2, but as I neared the end of the project, I encountered a strange bug where after the lighting only build, some models would turn all white, the photos uploaded will show what it looks like. If anyone knows what the problem is, I’ve been working on this for 2 months, I hope it won’t be all to waste.