PyCharm does not highlight unused imports and not installed imports anymore

Hi!

I have a problem with imports in project files. Until a while ago it used to grey out unused imports and to highlight with a red underline missing packages that I'm trying to use. Now, I can type in whatever package I want, even non-existing but it doesn't highlight anything anymore, but letting me know it`s not in project's requirements.txt

Basically a while ago, the non existing packages would've been highlighted and when hovering above them or hitting CTRL + Enter it would've show me a pop-up to install the package.

For the unused, it would've grey out the packages so I know I can delete them because they are not used.

What should I edit to fix this? It's getting annoying.