Importing a new scene onto another project turns some of the assets pink

Hi there! I’m relatively new to unity and have been encountering this issue where, after importing a scene from a different project into this other project I’m working on, some of the assets on a scene from the project I imported the other scene into, suddenly turned pink.

I looked it up online, and apparently, this is probably due to a mismatch in the rendering pipeline, however I found that I didn’t seem to have that issue.
Upon double checking, both the source project and the new project are both using the built-in rendering pipeline, and all of the materials still say ‘standard’.

Also, examples online show that their material-turned-pink says “Hidden/Internal shader error” and the shader actually looks pink, however that doesn’t seem to be the same case as mine.

Here is the environment that turned pink. This is a scene that is in the new project. The scene I imported is completely fine.

Any and all help is appreciated. Thank you so much!