Undefined index: value sites/all/modules/date/date_views/date_views.module on line 371 for second date filter

I'm trying to add two date filters on the same field, a starting and ending date (just enabled Date Views). They aren't starting and ending pairs in a single node, just starting and ending dates to apply to a single date in the field. I get the above error when trying to save the second filter settings. The first one (greater than or equal to) saved okay into the View. The second one, ending date, gives the ajax popup error mentioned above if I save, cancel, or remove. I have to use the black X to get out of the settings dialog.

[edit] Add that my filters are exposed, but that doesn't seem to affect it. They are also Select (as indicated from where the error is) and I don't get the error if I choose popup.

I have Views 3.3 and Ctools rc1.