cbbackupmgr restore hang in build 6.5.0-4059

Install Couchbase server 6.5.0-4059 on 4 centos 7.6 servers.
Steps to reproduce:

• Initialize a node A (124) with services kv,index,n1ql,eventing
• Create default bucket and load 1000 docs to default bucket
• At node B (127), create backup repo backup at directory /tmp/entbackup
• At node B, run backup node A
• At node C (126), initialize node with same services: kv,index,1n1ql,eventing
• Create default bucket.
• Run cbbackupmgr restore to restore data from backup repo to node C
• cbbackupmgr is able to retore data back to default bucket in node C but the restore process on node B does not terminate after finish restore data back to node C. This restore process hangs forever.

I will try old build to find the last stable build