[meissenation]

I don't know how much this helps but I turned debug mode on for a few minutes and tried different things - refreshing the thread, RSVP'ing to the event, etc.

Whether Building Section - Yes or Building Section - No showed up, it would still just show "Array"

All the database queries were working perfectly fine. I ran them separately using phpMyAdmin and the Execute SQL Query in AdminCP and both returned the data.

I don't see any error messages in my PHP error log or my Apache error log.

I also disabled ALL mods and I still get "Array" so it's not another modification conflicting with it.

I saved the debug output if any of it would prove helpful.

I see the following templates were called:
(1)calendar_rsvp
(1)calendar_rsvp_bit
(1)calendar_rsvp_form
(3)calendar_rsvp_form_responsebit
(1)calendar_rsvp_section

But aside from that, I don't see any other mention of RSVP in the Phrase Groups, Include Files, Hooks, etc. There were no messages.