Dropbox Backup Stalled on .dbxignore

Question

In this forum I see previous discussions about this problem over the last 2 years, but do not see a documented solution.My Dropbox backup process reports "300.22 GB of 300.28 GB backed up, 99% complete", with the status line at the bottom of the window showing "Updating .dbxignore". This is a MacBook Pro running MacOS 15.3.2. No further progress occurs.How do I break this deadlock?

WLHALBERSTADT · Answer

Adding: This situation causes Dropbox to continuously use 100% of one CPU, so it is critical to find a solution.