Files panel shows spinning progress wheel
When an active sync is underway, if you click Pause and then restart the Creative Cloud desktop application or your computer, the Files panel goes blank and shows a continuously spinning progress wheel.
Try the solutions below to troubleshoot the issue.
Hold down the Ctrl key while pressing the 'Quit' button under Preferences. This step kills all the CCDA-related processes together such as Adobe Desktop Service, and Adobe Content Synchronizer, etc.
Uninstall the Creative Cloud desktop app using the uninstaller available at https://helpx.adobe.com/creative-cloud/help/uninstall-creative-cloud-desktop-app.html, and then reinstall.
No restart of Windows or MAC is required.