Cannot delete a new experiment with 3.13.0

I reproduce the steps here:

mcastril@bscesautosubmit01:/esarchive/autosubmit> autosubmit expid -y t0go -H marenostrum4 -d "Copy of t0go experiment to analyse wrappers performance"
The new experiment "a34m" has been registered.
Copying previous experiment config directories

Checking configuration files...
expdef_a34m.conf OK
platforms_a34m.conf OK
jobs_a34m.conf OK
wrappers OK
autosubmit_a34m.conf OK
Configuration files OK

checking model version...
Experiment registered successfully

mcastril@bscesautosubmit01:/esarchive/autosubmit> autosubmit delete a34m
Do you want to delete a34m ? [y/n]
y
Removing experiment directory...
[ERROR] Trace: 
 [CRITICAL] Can not delete experiment folder:  [eCode=7012]
More info at https://autosubmit.readthedocs.io/en/latest/faq.html

I tried with 3 different experiments. However, loading 3.12.0 I can delete it:

mcastril@bscesautosubmit01:/esarchive/autosubmit> module load autosubmit

The following have been reloaded with a version change:
  1) autosubmit/3.13.0b-foss-2015a-Python-2.7.9 => autosubmit/3.12.0-foss-2015a-Python-2.7.9
  2) matplotlib/1.5.3-foss-2015a-Python-2.7.9 => matplotlib/1.5.1-foss-2015a-Python-2.7.9

mcastril@bscesautosubmit01:/esarchive/autosubmit> autosubmit delete a34m
Do you want to delete a34m ? [y/n]
y
Removing experiment directory...
Deleting experiment from database...
Experiment a34m deleted