Number 3 happens all the time to me when using VSCode with Copilot as autocomplete. Copilot sometimes works, sometimes doesn't. Also happens a lot when using Pycharm with Python. Sometimes it's great at autocompleting, sometimes it completely gets lost and has no idea what my Python script is doing.

Number 5 also happens a lot on VSCode + Platformio. It also frequently happens on Intellij IDEA for me, but mostly when I am concurrently running build or test while writing. My crappy work laptop suffers from Windows 11 related performance issues, and when there's not enough performance available, underlines do get wonky quite frequently.

[–] olafurp@lemmy.world 2 points 1 day ago

I also had issue when I was working on a pycharm project back when I was on windows. During setup it asked me "What's your name?" and my name has a cheeky accent which Windows was decided should be the name of my Home folder. Home folder also has appdata and whatnon so which the build system didn't expect to have a an accent in the folder path.

I ended up having to create a different folder and link to it then move all the path configurations to that folder link just so I could get imports working.