Hi,
I just entered a cave/tunnel level, killed a Firebug which crited as first action. Killing the Firebug exploded a nearby beholder. Then slimes moved. This shouldn't occur as it was still my turn, since I crited.
It is dumb because as you are in feat slimes can also move twice ? I doubt this is wanted.
Note: I use crit because I don't recall the exact feat-reason.