Great news Larry, I guess.  At least you know what you are dealing with.

What's next? A teardown for sure, but simply replacing the case doesn't
necessarily solve the problem.

How often do folks see cracks in WBX cases? This engine is a tad
experimental.  If its not apparent why the case cracked, I'd worry about it
happening again.

At that point, highrollers might think about a more radical solution:
replacing the engine :-(.
Thomas Forhan