Running Mac 12.6.1 and Dorico 4.3.0.
In Write Mode I used a filter to go to a solo instrument in a small chamber orchestra mock-up. I invoked the Jump Bar and unsuccessfully tried searching for a command, instead using the side zone to insert what was needed. However, the Jump Bar remained centered on the page. And it stayed there even though I cycled through all five modes, changed from galley to page view, went from full score to individual parts, etc. Nothing I tried would remove it: the Escape key, clicking on various areas around the Jump bar, etc. Finally, I closed the project (ironically from the Jump Bar), reopened the project and all was well. Others in the forum with a similar issue had closed Dorico to remove the Jump Bar but I simply closed and reopened the project. This is not a major problem and I am unable to recreate the issue. It is just one of those snags a wonderful, yet complicated software will occasionally come across.