Nym request to STN results in inconsistent responses

Steps to reproduce:
Send NYM transaction to the STN ledger through indy sdk with enabled logs.

Expected result:
Receive ACK/REPLAY from all nodes (except icenode may be)

Actual result:
Attached files:
1) log_stn_nym_4_m is filtered copy of log_stn_nym_4. The most strange is last responses: some nodes reply as in situation on duplicate request
2) sendNymLog.txt - last section in the file - all nodes respond with ACK, but there is no one REPLY

Versions:
for the pool, apt is pointed at the rc branch, and the indy-node version is 1.2.44. For the client, the apt is pointed at the stable branch, and the indy-node version is 1.1.0.