Jails not mounting after update to 12.0BETA2

I tried to update to BETA1, received a similar error, rebooted back to 11.3. Tried Update again, did not succeed.

root@freenas:~ # iocage list
Traceback (most recent call last):
File "/usr/local/bin/iocage", line 10, in <module>
sys.exit(cli())
File "/usr/local/lib/python3.8/site-packages/click/core.py", line 764, in _call_
return self.main(*args, **kwargs)
File "/usr/local/lib/python3.8/site-packages/click/core.py", line 717, in main
rv = self.invoke(ctx)
File "/usr/local/lib/python3.8/site-packages/click/core.py", line 1137, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "/usr/local/lib/python3.8/site-packages/click/core.py", line 956, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "/usr/local/lib/python3.8/site-packages/click/core.py", line 555, in invoke
return callback(*args, **kwargs)
File "/usr/local/lib/python3.8/site-packages/iocage_cli/list.py", line 82, in cli
_list = iocage.list(
File "/usr/local/lib/python3.8/site-packages/iocage_lib/iocage.py", line 1344, in list
return ioc_list.IOCList(
File "/usr/local/lib/python3.8/site-packages/iocage_lib/ioc_list.py", line 76, in list_datasets
ds = list(ds)
File "/usr/local/lib/python3.8/site-packages/iocage_lib/dataset.py", line 84, in get_dependents
if ds.locked:
File "/usr/local/lib/python3.8/site-packages/iocage_lib/dataset.py", line 90, in locked
return not self.mounted or (
File "/usr/local/lib/python3.8/site-packages/iocage_lib/dataset.py", line 79, in mounted
return self.properties['mounted'] == 'yes'
KeyError: 'mounted'