I'm having very odd issues with certain frames in this file. I've upped the quality settings to try to make it go away, and tried to find answers here or in the documentation first with no luck. You'll notice that suddenly the flame will disappear for a single frame then start up again. I'm also getting this weird tearing on certain frames. I'm not use several machines to render so I don't think I should be having any problems with different solutions by varying machines. I've read that subframe iterations don't matter, so I didn't go down that path.
I'm using the latest version of XP for PC, Cinema 4D R21, WIN 10 and Cycles 4D (not version 500 because it didn't like my video cards)
I suppose that I could piece this thing together and make it work, but I'd really like to figure out why it's acting so jittery. Please give me a hint or two and I'll be very grateful.