Originally Posted by
mschwett
.....
here’s a video with the ticking, .....
Please don't shoot the messenger, but the video is useless as a diagnostic tool.
If you want to help those trying to help you post quality closeup photos that show what people are talking about. Since the sound seems synchronized to crank rhythm, start with a photo of the right crank area with the left pedal forward (when you say it clicks).
Also, and I apologize if it's been mentioned, my first step in diagnosing a mysterious crank noise is to swap out both pedals. This is the easiest way to narrow the list of suspects. Overall, the process is like a S. Holmes mystery, wherein suspects are ruled out one at a time until the only one left must be the culprit.