I had Gaia Manager, and Open Manager installed. Had my games from my external HD showing up in both. I formatted my PS3, and started over. I loaded up Gaia and Open Manager again. None of the games are appearing in my Gaia manager anymore.
The games are showing up from my external HD in Open Manager...
i could only get heavy rain to play from internal ps3 hdd.. i'd suggest you delete your game save data etc.. copy h.r to internal and it should work.. i had the same trouble as you until i did this... i also use pm 2.1I but i don't think that matters.. good luck.+ rep if it works.
it should ask you if you wanna use oman/1234 or laun/1234 or some thing close to that.maybe i got numbers wrong anyway choose the one to suit..in my case it was oman/1234