How do I report bugs?

Elementary Season 2 Episode 4 plays the subtitles of Season 2 Episode 2. S2E5 plays S4E4 with the same suvtitles, S2E6 resumes without issue...

This happens a lot across the service. There is no report button... Most other streaming sites have a "report an issue" button in-app...

How do I fix/report this? I'd like to watch S2E5...