Could you explain that a bit more clearly?

You were attacking something with the blue homing things, and it killed something, went to kill a second, and crashed on the 2ns kill?
Or...
You were switching from the crab to the blue thing and it crashed?

This looks pretty awesome, let me test it out.

The first one.

Sometimes when things are overkilled, the game crashes. The bullet has a lot of particles emitting, so if it hits something and stays right in the middle of what it's killing then there is a slight chance of the game crashing.
How many times has it happened to you? I get this every now and then, but never consistently or back to back with the same thing.

When I attempt to transform the actor, the game crashes. As soon as the plasma form initiates, (insert airplane crashing and burning noises here).

I use a mac, and the previous iteration of the MC6AC worked beautifully for me, and was certainly one of the better uses of a crab. Useless little blighters otherwise....

Anyway, just curious if there's any particular way to solve this. If I have to stick with the old one, it sure as hell won't kill me.

I honestly have no idea what causes it, some people have the crashing and others don't. I would recommend re-downloading the mod (it may be one of those weird archiving errors) before you give up and use the older one.

Yeah, I tried redownloading it, in case it was exactly that, and, unfortunately, encountered precisely the same issue.
Perhaps I'll go through the older and newer versions and see what I can salvage in terms of improvements between renditions of the beast.
In the unlikely event that I find anything out about what's going on with it, I'll share.

Got a vaccine for it? (got it? )