Just a quick background of my environment....

Horizon 7.6

App Vol 2.14

UEM 9.14

Windows 10 Enterprise 1803 

I recently upgraded to Horizon 7.6 due to compatibility issues with previous version and Win10 Ent 1803.  I now have an environment that is compatible according to VMware.  I am having the same old start menu and search issues that should be resolved.  If i have app vol installed on the image then the start menu and search functions are broken.  If I just remove App Vol and recompose the pool then it works again.  It doesn't seem to be related to a writable being attached.  I tested with and without.  I also already added the line to disablehotplug as recommended by VMware. 

Any other ideas?