On nG6, trying a project space migration results in a wf that stays "started"

Since the last update, I have tried validating the migration feature in production environment, and a bug occured.

The workflow stays started:
The directories generated by Makeflow have "root" as Owner and group:

[root@ng6-slurm switchspaceid]# pwd
/work/ng6/jflow/work/switchspaceid
[root@ng6-slurm switchspaceid]# ls -lt
total 6
drwxr-x--x 4 root root 4096 17 janv. 09:05 wf004643
drwxr-x--x 4 root root 4096 16 janv. 16:11 wf004638
drwxr-x--x 4 ng6  ng6  4096 15 janv. 17:28 wf004616
drwxr-x--x 4 ng6  ng6  4096 10 janv. 14:48 wf004542
drwxr-x--x 4 ng6  ng6  4096 24 déc.  13:48 wf004448
drwxr-x--x 4 ng6  ng6  4096 24 déc.  13:39 wf004447
drwxr-x--x 4 ng6  ng6  4096 24 déc.  13:35 wf004446
drwxr-x--x 4 ng6  ng6  4096 24 déc.  13:22 wf004445
drwxr-x--x 4 ng6  ng6  4096 23 déc.  15:57 wf004440
drwxr-x--x 4 ng6  ng6  4096 11 déc.  16:45 wf004238
drwxr-x--x 4 ng6  ng6  4096 11 déc.  16:38 wf004237

No ".stdout" log file, and not much more infos in ng6.log:

01-17 09:05 MoveProject.process DEBUG     Begin MoveProject Component.
01-17 09:05 MoveProject.process DEBUG     self.space_id=seqoccin
01-17 09:05 MoveProject.process DEBUG     self.project_id=1518
01-17 09:05 MoveProject.process DEBUG     stdout = /work/ng6/jflow/work/switchspaceid/wf004643/MoveProject_default/MoveProject.stdout