C5->C6 HALion One content disappeared

W7 64 Bit, I had C5 (64 bit) and installed all additional content data for HALion One. They’re installed on a dedicated HD. Yesterday I’ve upgraded to C6 - setup application didn’t asked about paths for HALion One Library… .

I can load my old projects with HALion One and they’re playing correct - using sounds from those additional content data installed with C5, also theedit control with preset title shows the proper (old) preset name. Although the preset list in the browser shows only SR OneSoundz Silver and Yamaha S90ES banks. After changing the preset I cannot return to that old one - it’s not in the list. Removing and adding libraries changes nothing. Is it possible to use content data and its presets installed with C5 in C6?