HI.
Im familiar with automation, but now when i try to assign an issue to a person i'm not able to finish the action on the automation configurator because the screens goes blank and is not possible to save the change.
Here's how the rule looks like

Now i will select an usser to be assigned to this subtask

After picking up the user, screen keeps blank, nothing happens

Tried Chrome and Firefox with the same results.
Also rules that were working and assigning automatically now i'm not able to edit them bacause screen goes blank and not able to save it
Any idea?