Category month navigation issue

I’m having a similar issue that’s been reported by several people. When I view a category page on the calendar using the month view, then click the link to view the next month, all events (no matter what category) are displayed instead of just events from the current category. The URL still reflects that I’m looking at that category, but the events are from all categories.

I’ve already tried:
Changing to Twenty Fifteen theme: no change
Deactivating all plugins except TEC: no change

WP: v 4.2.2
TEC: v3.10.1

Here are similar threads:
* https://wordpress.org/support/topic/month-navigation-with-categories (problem 2)
* https://theeventscalendar.com/support/forums/topic/month-view-previous-next-navigation-loses-category-filter/
* https://theeventscalendar.com/support/forums/topic/events-in-wrong-category/

I know you have it reported internally and plan to fix. Adding my report here to hopefully move it up in the bug fixes list.

https://wordpress.org/plugins/the-events-calendar/