Glad to know we're not the only ones experiencing this issue. It's not just switching to a different page that triggers the edit mode back. Editing block attributes and publishing cause this behavior as well. It's really frustrating.

Perhaps you should log this issue in the Feature requests forum:

https://world.episerver.com/forum/developer-forum/Feature-requests/

Thanks for the idea, Bob. I was wondering how to report bugs or request features. I've requested the feature: https://world.episerver.com/forum/developer-forum/Feature-requests/Thread-Container/2020/2/cms-ui-refresh-v11.23.3-persists-selected-edit-mode/

Sticky view mode (link) was a feature present prior to the UI refresh. Quote from the comments section: «Best feature since sliced bread!»

Was it intentionally removed?

If yes, I think it should have been announced as a breaking change.
If no, I think this should be considered a bug, not a feature request.

It must be a bug, it works for some editors but not for all. 

For me a fix was to log into edit, open developer tools, clearing all local storage/session storage/cookies, and then logging in again. After that sticky has worked. 

A client did the same, but not with the same luck.. sticky still gone.

We also upgraded and have the same bug. It seems the global menu CMS link adds "..Home/Index/.." to the cms url. This is not happening when clicking the cms button from the website itself.

We told our content managers to just remove the "Home/Index/" from the url manually until the link is fixed in EPiServer. This workaround should fix the sticky.

@Cees Removing "Home/Index/" from the URL manually works for me too. Good find!

EpiServer Fixed the bug: https://world.episerver.com/documentation/Release-Notes/ReleaseNote/?releaseNoteId=CMS-15171