Instruments fail to load in HALion Sonic SE3

I have various installs of Cubase, HALion, etc., on my work computer and laptop and everything works just fine :slight_smile: I also installed a copy of Cubase LE 10.5 on my tablet. For some unknown reason instruments fail to load. All the sounds show up in the browser and if I click on any of them to select them, the progress bar gets about half way along before it snaps back leaving the slot empty. This is very frustrating.

FWIW, my tablet is configured with a C and D drive. All the VST content is located on the D drive and I moved it there using the Library Manager. Any suggestions to get sounds loading into HALion Sonic SE3 would be very welcome.