I was editing a topic in my .hmxp project, and noticed response becoming slower and slower -- 3-4 seconds between a keystroke or mouse click and execution of the action. I checked other open applications to see if it was a system-wide slowdown, but it was H+M only; other apps were responsive. I saved the project, and closed and restarted H+M. The topic I was editing now appears with a red banner at the top of the edit window:
Topic is read-only! File "<myFilename>" is locked by another user.
But I am the only user, and my H+M is not configured for version control. The XML source file in question displays normal metadata and permissions in File Manager. However, in the H+M Project view (under Topic Files), the file shows a Modified date of
12/30/1899.
Ideas?