Looks like one of your 3930's is running a 32 bit app Jed, ID: 886. It's taking about 4 times as long for wus to complete on that machine. Possibly no <no_alt_platform> on that one? I had the same issue and had to abort all work, then detach and reattach. Then it wouldn't give me work for a day so I had to start up a 2nd instance of BM. Kinda a pain, but it worked.