I just got GPU's made my first image and installed AppVolume on it was working good for 20 hours now I get this error all the time. I did this KB which didn't work. VMware Knowledge Base
now when any of my team logs in to this test pool they get the same error. Anyone else seen this?
Take a look at this thread: https://www.rhofland.com/app-volumes-invalid-session-cookie/
This issue is caused by the Instant Clone mechanism for ESXi 6.5 in combination with NVidia vGPU. As you might know a parent virtual machine doesn’t get a vGPU attached so whenever an instant clone virtual desktop is spawned the vGPU needs to be added to the virtual machine. This process requires an extra reboot of the VM which will eventually lead to the App Volumes session cookie mismatch.