All my assets are displayed as warnings in all worlds!

Hey Natasha, I'm sorry you have run into this issue. Usually the triangle symbol indicates a rate limit on loading textures. This often occurs after using a script that attempts to swap a texture too quickly. Try checking any newly implemented scripts that use this functionality.

It can take a day for the rate limit on your account to reset, but if the script is still active in your world the limit will be hit again.