No Intellisense for some classes in Unity project

Hi,

Rider has suddenly lost Intellisense on some specific Unity classes. It only does this in 1 specific project, the others are working fine. If I delete the project and clone it again, the problem persist, and I also tried reinstalling Rider and this didn't help either. I'm on Unity 2021.3.17 and Rider 2022.3.2; on Windows 11.

Below are some screenshots from the problems I'm encountering, thank you for any help you can provide!