I had the same problem after installing Pack 7. I did a quick reload after installing it and the style was missing in the style picker even though it was on the SSD. I just now did a slow rebuild and it now shows up in the style picker.
HOWEVER the demo will not play wither on the SSD or at PG's web site because.......
I took a look and the style listed on PG's website is _PASNGER.STY while on the Hard Drive it is named _PASNGR.STY
There is no demo either on my SSD or on PG's website from within BIAB because the demo button in BIAB for that incorrectly named style, _PASNGR.STY, is expecting to find wither a WMA or M4A file named _PASNGR but the demo on my SSD is named _PASNGER.WMA
And:
https://demos.pgmusic.com/audio/allstyledemos2/_PASNGER.m4aMy quick temp fix is to make of copy of _PASNGER.WMA and just rename the copy to _PASNGR.WMA to match the existing style name and the demo works fine. Still won't work on PG's website due to the mis-naming error.
PG needs to fix this in the next update.