Some follow-up questions:
Now that users are logged in to VMs but do not have their apps settings and redirected desktops and I confirmed that they can access "\\bheisilonsmb01\UEM\UEM_Config\general" with Windows Explorer, is there a way to trigger a re-import of their settings onto the existing VM so that they can continue on working? I rather not have users logged off and grab new VMs because that will be thousands of users logging off and VMs getting recomposed. We've tried a refresh with this, but that did not bring everything in. Are there other parameters that we can use?
"C:\Program Files\Immidio\Flex Profiles\FlexEngine.exe" -uemrefresh -UemRefreshDrives -UemRefreshTriggeredTasks
That Flex config files path '...' not available -- Skipping import message means exactly that: the path was not accessible when UEM tried to access it at logon. That indicates some kind of infrastructure problem outside of the realm of UEM itself.
There's no supported way to get UEM to perform its logon actions at a later time. Given that you indicated that you have "been having sporadic issues", maybe having the affected users log off and log on again won't be too problematic?