The violin modes have been high this lock as Gabriele noted earlier in the chat.  I saw on the screenshots that when guardian turned on the OMC DCPD whitening, things were saturating.

I removed the DCPD whitening by selecting REMOVE_WHITENING in the OMC guardian.  Since I'm not sure what's up with the violin damping, and I (assume) no one is working on the IFO for the rest of the day, I selected DOWN in ISC_LOCK, so that if the violin modes do get bad enough that we lose lock, the IFO will stay in DOWN until someone manually tries relocking. 

Folks should feel free to relock, I just didn't want it to be trying and failing while no one was watching to try to help the lock.

Edit to add: it looks like, with the whitening off, the damping is still going well.  It's just that the whitening may have turned on a teeny bit too soon, so we started saturating, and things went poorly from there. Hopefully we'll just stay locked all night :)