I have problems with BFD3, it crashes Cubase since I made the update to 7.5.10. Before that, no problems. First, I had the problem that Cubase didn't start up, it always stopped at initialising VST 2.x BFD3. I run Cubase in administrator mode, that did the trick. Afterwards I could start up Cubase and it worked even in normal mode. But loading up BFD3 in Cubase causes it to freeze. That's bad, because it's one of my most important plug-ins.
The trick for me was to deinstall Cubase, downloading it again from the Steinberg website and reinstalling it. Now everything works even in 7.5.10. I think, something went wrong with the download the first time. I hope, this helps you too.
Similar problems here. Doing pretty much anything in BFD 3 using Cubase 7.5.1 causes the host to crash. It's happened loading a preset, launching a browser window, just playing notes etc. Not a RAM issue here as system in question as 128GB and most of that free.
Sometimes for no apparent reason my Stream & Ram buffer settings get changed.
They go back to the default value ( larger so it should be fine) but If they're not set to 8192 BFD3 acts 'strange' in Cubase 7.5.10..
I have found that any project with BFD3 means that Cubase 7.5.20 freezes on Exit. I found a thread by Marcus C where it said that Steinberg Hardware may cause the problem - I have a Steinberg MR 816x audio interface.
Any plugin that misbehaves like this ends up in VE Pro as Cubase freezing on exit can lose its settings (which is a real PIA). This is where BFD3 is going until this issue is fixed.
BFD3 is the only plug in I have that is currently sin binned. Even Play 4 is allowed to play inside Cubase these days.