Corey and I ran the DARM offset stepping script using Jennie Wright's instructions from 85136.

Writing data to  data/darm_offset_steps_2025_Jun_20_15_11_46_UTC.txt  Moving DARM offset H1:OMC-READOUT_X0_OFFSET to 4 at 2025 Jun 20 15:11:46 UTC UTC (GPS 1434467524)

We lost lock 2 minutes after this script finished.  Kevin was running an ADF sweep at the time, but that was not doing anything at the time of the lockloss, so this seems like an unrelated lockloss.