macOS 10.12.3. BC for macOS 2.7.778. Dropbox 20.4.19.
Sometime in the last month or so, the temporary folders created when saving Excel 2016 for Mac files are not being deleted. The folder is empty. Excel creates the temporary folder when saving files.
When I save the files directly in a Dropbox (without BC) folder, it is fine. Only the combination of DropBox + BC causes the issue.
Every single save of an Excel file creates a new temp folder.
Microsoft Word and PowerPoint seem fine. The folders appear briefly, and then disappear.
Anyone else seeing this?