Starting today Stardock Start10 search doesn't give results.

https://www.youtube.com/watch?v=vSJkxjJJmdI
Windows 10 start menu search (cortana) works just fine.
I've rebuilt the search index, purged the start10 menu with the purge tool. Removed the installation, cleared everything stardock related with regedit, without a results. I also followed the samples/guides you can find in these forums relating to Start10 search.
I'm using v. 1.7 Start10 and Windows 10 Enterprise v. 1809. Yesterday Start10 search worked just fine. Nothing changed on my system (no winupdates, no software installations etc.). I'm using Start10 search only to launch programs and games.