Pink Materials if Android build is *.aab

Happy Hollidays everyone!

So I have pink materials on Android build, but only if the game was build to an *.aab. When build is *.apk, all is fine. In editor and build for PC no problems too.

The game is using URP, according to version control I didn’t change anything graphics related in the update where issue first appeared. Said materials / shaders hasn’t been touched in 2 years. No updates of URP, Unity or any packages, just usual script refactoring commits ( non graphics related). Reverting the entire project with version control doesn’t fix the issue either.

Scratching my head on where even start.

Would be very grateful for any hints.

Cheers!