After approximately 20 (expected) crashes I've pinpointed the cause to an MVR panel containing a resource to which I then try to switch to (as it's own resource).
For example, I have LEB | NET, NKJV, NJPS. When I select the parallel resources button and choose NET, NKJV or NJPS there is a small pause, then an immediate crash with no error message. I didn't test out this method as thoroughly as simply navigating to the next or previous version via the arrow keys (which is how I discovered the bug). So, in the above example, NKJV is to the right of LEB and NJPS is to the left as I switch versions using the arrow keys. With MVR turned on in the LEB, then, there is no way to switch to a different version using the arrow keys.
BTW this is on 6.7.0.0033 and OS X 10.10.5
