Omnisphere 2 Refresh Soundsource Browser

Sep 17, 2015  Omnisphere Installation Problem (Fix for everybody?). Can not load soundsource '.' In directory 'Core Library'. Try refreshing the index browser. Try refreshing the index browser. Now, I have tried everything. After one reinstall, I got an issue that involved a.zmap, and I have no idea what that is or what happened to that.

Soundsource

Omnisphere Refresh Soundsource Browser

Omnisphere 2 refresh soundsource browser windows 10

Omnisphere 2 Refresh Soundsource Browser Version

I guess this is for Eric mainly. Very occasionally I find a soundsource that won't load in Omnisphere, which claims it is missing. Toxic Aura is one which crashes the system, and I know you've tested this, Eric, and it's generally fine on other systems.
What's the best thing to do when a user has a corrupted or missing soundsource? Just installed the latest software and patch update, but I still have this problem. Thanks for any advice!
PS - am so frustrated by other rubbish synths that I'm going to try Omnisphere on the 2ghz Core2 laptop... it MIGHT just handle it with some freezing! Omni is just in another league...