Ableton themselves have broken the functionality of the auto populate function in Options.txt
If you’re running Live 10.1 then please update
-_PluginAutoPopulateThreshold
in your Options.txt to be 128 instead of -1.
For support as an existing customer please use the Support Request section within your account page, this will enable us to validate your purchase automatically and assign the request to the relevant developer to respond when they're available.