The 12:59 UTC lockloss this morning was caused by SWAP_BACK_ETMX state of SUS_CHARGE, when IFO L3 DARM control was being swapped from ITMX to ETMX. The in-lock charge injections themselves started at 5.45am alog 69412 and completed without issue.

Although I shortened some ramp times in alog 69234, this was only the ramp times in RUN_ESD_EXC guardians, for the injections and changing the bias values. That worked fine, we lost lock after these states had completed.

There was a glitch in ETMX int he last state of ESD_EXC_ETMX when the L2L filters were changed even though the L2L gain was zero, see attached.  This seems strange. After this point, the ADS monitors show an excursion (12:59 UTC lockloss) which could have caused the lockloss. ( <- Elenna clarfifed that the ADS control signals don't show anything when the lines are off...d'oh. )