The chaos mutant quickling could work as well.
Type: Posts; User: Jeremiah
The chaos mutant quickling could work as well.
I think it is far more likely that you were hit by the jelly that slows and didn't notice than some strange unexplained never before seen bug.
The writhing mass of primal chaos slows when it hits, I would assume above that message buffer it got some hits on you and massively slowed you.