Migx saving problems + access policy

Hi Guys,

Something strange is happening when I try to save the resource page after editing content.

When I do changes in more then one row in the MIGX TV and then hit the "save" button. It doesn´t work, it keeps saying "saving..."and I need to reload the page or close the browser to stay in the manager

If I do changes one by one in the MIGX tv/editor and save the page then it works!

I thought it may come because I have applied another acces policy but after doing a review I can´t discover what is causing this problem.

If I log in as admin: No problem.
I´am using MODX Revolution 2.2.5-pl

I hope you can help.

Thanks in advance!