Hi,
Is the RFC LMDB_SyncDest1 passing the authorization test?
What user are you using for LMDB_SyncDest1? Please make sure you are using the user SLDDSUSER for the RFC.
It seems the change are not propagated from SLD to LMDB and the destination LMDB_SyncDest1 is unreachable every once in a while.
Thanks
Vikram