HCL delivered a new InterimFix for Domino 12.0.1 where a lot of fixes with DAOS are included:

DCKTCARNVR	Fixed an issue where error may result in long held locks on daoscat.nsf during replication
SPPPCAMM6Y	Fixed an issue where there were multiple locks on daoscat.nsf
HPRHCASE7N	Fixed Domino crashes related to DAOS
BSPRCBQLLJ	Fixed deadlock and performance issues related to DAOS

You can download IF2 from HCL FlexNet Portal.