Start Zoom Workplace when I start Windows not working for everyone

[JamieH_]

Just wondering what troubleshooting options there are for Zoom Desktop clients whereby it's not automatically opening on Windows start.  We have even applied as a Group Policy to enforce the start tick box, but we still have a random users where it doesn't and they have to manually run it (it's not running at all, not a silent start confusion)

This has been the case through various version of Zoom VDI 5.x and also on 6.0.x - Windows Server 2016 / 2019 for Citrix desktop.

Are there any caches that could potentially be cleared down that may be causing the issue / has anyone else experienced this and resolved, please?