If you have been having issues making use the BlackBerry Virtual Expert app since updating to BlackBerry OS 10.3.3, the fix is now in. A brand new update for device diagnostic app has now arrived and is available for download through BlackBerry World.
There is no change log associated with the update but, it does address the problems some folks were having with icon going missing and the app crashing unless accessed through the help section. A vital update? Not really, but nice to see it get fixed.