For a reason unknown to me, our standalone applications stopped working recently on the PC for quite a few of our Signal Culture applications. When I opened up the max patches from the last build they were instantly crashing max as well. Both apps and max patches had an error that the Win debugger found jit.dx.grab, which is weird, because I have not used that object in years. To get things working, I went into the object library and deleted jit.dx.grab and max was able to open our patches again to rebuild our apps.
Thought I would share incase someone else ran into the same problem.