[Samba] Replication between DCs seems broken after deleting a domain member

[Arne Zachlod]

Hi,

I recently upgraded my Samba 4.3 to samba 4.13 (I really did 4.11, 4.12 
and then 4.13). Everything seems to work fine for now, but there is a 
problem in the samba log on all but one of my DCs.

I have 4 DCs: addc08, addc12, addc13 and addc16

all of the DCs are on a different AD Site. addc13 is int he same site 
with the member hydra.

I deleted the member hydra and added it back a few weeks ago because we 
had problems with some users logging into it from other sites. It seemed 
to have worked at that time. hydra is running as a linux AD member 
fileserver.

addc08 shows this:

[2021/06/07 15:23:03.219420,  0] 
../../lib/ldb-samba/ldb_wrap.c:79(ldb_wrap_debug)
   ldb: No objectClass found in replPropertyMetaData for 
CN=hydra,CN=Computers,DC=int,DC=company,DC=de!

[2021/06/07 15:23:03.220149,  0] 
../../source4/dsdb/repl/drepl_out_helpers.c:1184(dreplsrv_op_pull_source_apply_changes_trigger)
   Failed to commit objects: 
WERR_GEN_FAILURE/NT_STATUS_INVALID_NETWORK_RESPONSE


while addc16 and addc12 show this (only the timestamp doesn't match):

[2021/06/07 15:22:12.356301,  0] 
../../lib/ldb-samba/ldb_wrap.c:79(ldb_wrap_debug)
   ldb: No objectClass found in replPropertyMetaData for 
CN=hydra\0ADEL:2daab3d0-b214-45ab-8f1b-0eef7da9ecd6,CN=Deleted 
Objects,DC=int,DC=company,DC=de!

[2021/06/07 15:22:12.357966,  0] 
../../source4/dsdb/repl/drepl_out_helpers.c:1184(dreplsrv_op_pull_source_apply_changes_trigger)
   Failed to commit objects: 
WERR_GEN_FAILURE/NT_STATUS_INVALID_NETWORK_RESPONSE

there is no such message in the logs of addc13.

My knowledge is limited here, but it looks like the replication of the 
deletion of the member hydra is not working? Is there a good way to 
repair this?

Thanks in advance for your help.

Arne