Issues: Clickup doesn't maintain a correct page URL history and honor browser back and forward buttons.
Clickup saves some sort of truncated URLs instead.
So when using browser nav buttons to return to a previous page, most often we just reach a terminal blank page (end of tab history).
But sometimes we reach someplace else entirely, often dumping out of pages into a task board.
Resolution: always honor browser navigation buttons. If there is a UI reason to not do this, then provide in-app navigation buttons that remember our history and can take us back and forth..