Can't say anymore until I get a confirming second source.
I'm trying to hint.
Second hint: Why was Brenneman able to make weight? He was told on Monday his fight was off, no replacement, right? Answer: He was told to stay on weight.
Add everything up. Rush rush rush
Again, my best source on what happened isn't good enough to go with on the exact thing. But it was a commission medical issue, not a weight issue.