first of all sorry for my english, it’s not my mother tongue.
i use SketchUp 2021 trial version, and i have a problem that comes really often.
i have a dynamic component with some setting possibilities, but after a few operations the component is still highlighted, but the setting possibilities are missing (picture: sketchup_nok).
after restarting SketchUp everithing comes back, but it is really annoying to restart the program in every 30 minutes.
There are combinations of actions where the options panel remains empty. And there is a bug report about that. It shows as still not fixed. But, there are reasonable ways around the problem.
Read through this post, and see if the situation seems to be the same as yours: