Thanks you two. Bill, have updated iLok Manager, restarted, rescanned all plugs. It reported only 2 did not initialize - z3ta+ (a Cakewalk Synth) and iZotope Ozone 8. I OK'd that box and saw UVI and a load more appear in my plugin list - HOORAY!
2 seconds later, all these vanished in a puff of smoke. So back to square one.
bbelius, thanks for that info. Here's the offending stretches:
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FIRST SCAN - v3.02:
Creating VST Plugin: C:/VSTs/UVIWorkstationVSTx64.dll
2019-05-02 18:08:13.118 INFO [13636] [VstPlugin::] Opening VST Plugin
2019-05-02 18:08:13.508 ERROR [13636] [VstLoader::] Error loading library: Cannot load library C:\VSTs\UVIWorkstationVSTx64.dll: A dynamic link library (DLL) initialization routine failed.
2019-05-02 18:08:13.508 ERROR [13636] [VstPlugin::] Could not load VST library
2019-05-02 18:08:13.510 INFO [13636] [VstPlugin::] Destroying VST Plugin: C:/VSTs/UVIWorkstationVSTx64.dll
SECOND SCAN - v3.05
Creating VST Plugin: C:/VSTs/UVIWorkstationVSTx64.dll
2019-05-02 19:50:37.060 INFO [9924] [VstPlugin::] Opening VST Plugin
2019-05-02 19:50:37.454 INFO [9924] [VstPlugin::] VST version: 2400
2019-05-02 19:50:37.454 INFO [9924] [VstPlugin::] Reading speaker arrangement information
2019-05-02 19:50:37.454 INFO [9924] [VstPlugin::] Updating bus channel counts
2019-05-02 19:50:37.454 INFO [9924] [VstPlugin::] Plugin opened successfully
2019-05-02 19:50:37.464 INFO [9924] [VstPlugin::] Destroying VST Plugin: C:/VSTs/UVIWorkstationVSTx64.dll
2019-05-02 19:50:39.476 INFO [9924] [VstLoader::] Unloading: C:/VSTs/UVIWorkstationVSTx64.dll
THIS LAST TIME:
Creating VST Plugin: C:/VSTs/UVIWorkstationVSTx64.dll
2019-05-02 21:07:00.520 INFO [2416] [VstPlugin::] Opening VST Plugin
2019-05-02 21:07:00.955 ERROR [2416] [VstLoader::] Error loading library: Cannot load library C:\VSTs\UVIWorkstationVSTx64.dll: A dynamic link library (DLL) initialization routine failed.
2019-05-02 21:07:00.955 ERROR [2416] [VstPlugin::] Could not load VST library
2019-05-02 21:07:00.956 INFO [2416] [VstPlugin::] Destroying VST Plugin: C:/VSTs/UVIWorkstationVSTx64.dll
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That 2nd time is especially odd - all seemed to go swimmingly, then it destroyed it.
"Destroyed" feels like an extremely apt word to describe what VEP7 is doing to my plugins.