I recently installed SketchUp 2023 and have discovered an issue with the Trays functionality. When I open file the trays are configured and located as I last left them. However, some trays are blacked out and not accessible. They only way to reactivate a tray’s functionality is to grab an edge and resize. I have created a video of the issue. See in the following link:
This is a known issue. There are several threads about this.