If you see the issue frequently then you need to report the issue, however I rarely have an issue with VS 2022 (17.4.4).
But if you want to learn what's happening behind the scene (not a solution for your problem) and understand how new WinForms designer works for new .NET projects, take a look at State of the Windows Forms Designer for .NET Applications
In your case, it's probably an issue with DesignToolsServer, you the following workarounds may help to recover from situation:
- Clean/rebuild solution
- Or, Close/reopen the Form
- Or, Kill DesignToolServer, then close the Form, then reopen it.