v141 Cygnus Awakening - Bugs and Glitches

I think Dimension Invasion is buggeed. I haven't done it before today, so I don't know for sure, but I got the Hilla vs Magnus bonus stage, and basically, the two enemies just ran at each other, three killed each other, then the groups of three just keep walking into the walls, don't even strike back when I attack them, and they just keep on spawning and spawning, doing the same thing over and over again. No new waves until I kill everything.

After a good number of waves, I just up and left.