Wavelab 10 Pro Win 10 VST's randomly disappearing

Hey all, I know that this is not a new thing, but I really need to find a solution and get back to work. Wavelab is about to be rendered to the great software scrap pile in the sky.

Here is what is going on…

Plugins are randomly being deactivated.

Rescan, some will come back but not all.

Rescan again, and the ones that came back last time have now disappeared again!

Plugins often effected…

TC Clarity M
MAAT EQ Orange and Red
Bettermaker EQ
Sonnox Limiter
Sonnox Pro Codec
Leapwing CenterOne
Meterplugs Loudness penatly

I need to get back to work, and this is getting absolutely ridiculous.

Does anyone know why this is happening, or is Wavelab simply a complete piece of crap. I have been using it for many years, but now it is costing me time, energy, and money.

WaveLab stores plugin info inside a setting file, located there (Windows): AppData\Roaming\Steinberg\WaveLab Pro 10.0\Cache\plugin-registry.txt

The file is only updated if the size or date of your plugin is modified. Could this happen for you? (backup software?).
If the file is not updated, the plugin list does not change from WaveLab session to session.