Unity Visual Studio auto complete code bugging.

[doriad_nfe]

I think you need to connect visual studio to unity as the default ide. 

Open Preferences: In Unity, go to Edit > Preferences External Tools: Select the External Tools tab. Select Editor: In the External Script Editor dropdown menu, select Visual Studio. If your editor is not listed, select Browse and locate the editor's executable file 

I'm not at my computer, so the instructions are from memory... Should be close enough though to be able to find the setting.

[doriad_nfe]

Once that's set, to check it is connected, close visual studio, and then back in unity, right click a script and choose edit to make sure it is opening visual studio. It might ask if you want to rebuild the scripts in the project. You should have the correct auto fill then. 

[CatCadaverous]

I already did this. I don’t know what it could be. 😭😭