I removed your new plain type thing (line 72) and then tracked down the infinite loop. It’s in the key triggeredInteractions, so I added that to skipFields. Seems to be running OK now, until we find the next problem 
edit: I’ve added incomingInteractions and selected to skipFields too. How would you feel about open sourcing this to github/npm @gdreyv? Just so we don’t have to post here every time we find something I’m happy to host on zeroheight · GitHub if you don’t have time to put it up