The figure shows that the “mystery” beam spot on the HAM3 spool piece dropped dramatically in intensity over the break. I don’t know if it was the compensation plate move or something else that we did. Im a little skeptical that it was the compensation plate move because, before the break, I moved the compensation plate while filming the spot and saw no change (https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=82252). However, I think that this is worth doing again to double check.