Tried relocking immediately afterward, but DRMI took a while & after it did lock, broke lock at SHUTTER_ALS. (POP18 only got up to about 55 with PRM/SRM touch ups at OFFLOAD_DRMI_ASC).
Ran an alignment.
Now back to locking. DRMI took about 7min to lock. (POP18 only got up to about 59 with PRM/SRM touch ups at OFFLOAD_DRMI_ASC).
SUMMARY so far:
1:04 H1 lockloss after 51hrs 44min!