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Outlook.exe /safe also has the crash?

There's probably an addin hooked to the outlook process that's crashing it

Waiting to hear back on if /safe crashes, but disabling all add-ons hasn't resolved the issue. We don't have anything crazy enabled, either.

Is it still crashing when you create a new Outlook profile for the specific user?

Just thinking if this could be due to a corrupted Outlook profile

That was the first thing we tried, deleting the user's profile - first in Citrix Profile Management, and now in FSLogix. Issue returns pretty quickly. I'm holding out hope that the new 1809 image he's testing continues to work out, because he says things are now working. I know not to get my hopes up, though...