Safeguard 6.10.0.374 crashing Yosemite

Hi All,

Hopefully someone has run across this. 

We have had a few Mac users go rogue and upgrade to Yosemite before we could stop them. All seemed fine until recently a very important user's MBP crashed. Upon startup all you got was a black screen with the "stop sign" the only solution was to boot into disk utility from a USB stick decrypt the HD and reset the PRAM. Once that was done the system booted normally. I did not encrypt his drive again for fear of it doing damage.

I have been testing this on a clean OS X 10.10 build and can replicate it regularly. 

Install our company cert. Trust SSL.

Install Safeguard 6.10.0.374 that according to the documentation is the correct (compatible) version for Yosemite.

Install our client configuration

All is well up to this point, once you enter a password to enable the encryption it proceeds to reboot. Upon reboot I get a black screen with the "stop sign" 

I have tried changing gatekeeper settings to allow apps from "Anywhere" but it does not make a difference. The odd part is that if I repeat the steps used to fix the first one (boot into Disk Utility - decrypt HD - reset PRAM) It works normally afterwards. 

Anything i'm missing? Or anything I can try? 

Thanks.