When using a uitype 33 field in a CustomView

If you add a condition in the CustomView that uses a field of type multi-combo box (UITYPE 33), then the view is not editable after saving it It saves correctly the first time, but when we try to edit the same CustomView and for example add a new condition and press save, it gives an error, "Invalid request" and the CustomView can't be edited in any way, the only thing you can do is delete it.