Azure VDI - Outlook Stuck on 'Loading Profile'

So after quite a bit of digging and back and forth from Microsoft we found a cause which we found out about ourselves. KB5044273 had apparently been a known cause of the problem. The next day after we started uninstalling this update Microsoft released a patch, KB5045594, which has since fixed the FSLogix login issue for us. We've had this patched for a few days now and kept an eye on it hoping the first few days hadn't been a fluke.
I'll post the links we had come across. Hope this helps anyone else who might still be having this.

I probably should clarify. This is a general issue but its been more consistent in the past month or so. We started having long login times to the VDI's and checked event viewer. Seems FSLogix was a route cause which had a knock-on effect with Outlook loading profiles. We still get the loading profile issue but definitely not as often as it used to be. The patch fixed the login/FSLogix issue and we've had consistently less problems with Outlook hanging. Something we had to do is open Word before Outlook. It shows a 'sign-in' error by the users icon at the top right. Signing in in the yellow box before opening Outlook has been a decent workaround but Word doesn't always give the option.

https://support.microsoft.com/en-us/topic/october-8-2024-kb5044273-os-builds-19044-5011-and-19045-5011-a07551f8-e20d-4fd4-87f3-01145a3cd494

https://support.microsoft.com/en-us/topic/october-22-2024-kb5045594-os-build-19045-5073-preview-f307a4b0-f62d-4c28-9062-44207aea55c3

bartmielo LeonardSchwenk