Clicking on Change Theme or Refreshing Explorer from PECMD2012 = ALL GONE

Hello everyone !
New here, so first I'll say Hello!

When I build then boot from ISO, everything is OK.
But when I click on the Change Explorer Theme icon, or select from PECMD2012 menu "Refresh Explorer", everything disappears, no more taskbar, no more icons, nothing!

Any clue what's causing this ?

Building with a 1809 Enterprise as source.

I would have to go back into discussions to verify my testing results - but I believe this only happens with "Admin" account
Thus set your Theme Light or Dark and forget it...

Oh thanks !
Well I removed the switch to Administrator feature. I don't think I'll have use for it.
And the problem is gone.
Thanks again for all the work !!