H1 lockloss a few after hitting the 42hr mark for a lock (42hrs03min). At this time we were in at the beginning of 6hr commissioning period and at the time of the lockloss we were about ~10min into running the DARM Offset script for OM2 heating set-up.
Not sure that the DARM offset step caused this as we were almost back at our nominal offset when we lost lock (step 6 out of 7 with H1:OMC-READOUT_X0_OFFSET = 9) which is ~27 mA, nominal is 40 mA.
We checked the lockloss ndscopes and couldn't see any smoking guns when the offset was changing from 8 to 9.