User defined VST presets have disappeared

Don’t know when or how but my user defined VST presets have disappeared from the media bay within (for example) Halion 3.

Recently reverted to Cubase from Nuendo (with help from Steinberg). Currently Cubase 11.

I have located my personal presets on disc and made them visible to the main media bay (F5). Still not showing up in Cubase/Halion6 etc. Nothing in the USER tab sub-category.

Re-installing Halion 3 with Steinberg Downloader did make some of my USER presets available but not all of them. Re-install of Halion6 did not make any user presets visible. And yes I have reset all the filters to ‘all content’.

Any thoughts?


Using Windows 10 BTW