Interesting, i wouldn't think smoked vine would do much but i guess it could, i know Rue seed does as Rue seed naturally is pretty potent but i prefer to smoke extracts on top of an herb like Cannabis rather than the actual seeds, though i have also smoked Caapi leaf but didn't really notice much from it, noticed a little something but not much. The only issue i've had from smoked Harmalas or Rue seed was a bit of nausea and purging a time or two. Though it's worth keeping in mind that smoked Harmalas/Rue/Caapi goes straight to the head, whereas oral Harmalas/Rue/Caapi is more full bodied, so one possibility could be that the smoked Caapi on top of oral Harmalas/Rue could potentiate the brain effects which could potentially cause some differences compared to oral consumption. THH from the Caapi could possibly do something, but it could just be something else in the Caapi. Also keep in mind that smoked Harmalas wouldn't affect gut MAO-A from my understanding, only the brain and liver MAO-A.
I think it's safe to say it isn't anything dietary though. Also, are you taking any supplements by any chance? Some supplements, herbs, even certain minerals have potential to interact with Aya in an odd way. I know for me personally Magnesium Oxide and Zinc Gluconate do not go well with Aya and causes some odd heart issues and some weird brain zap effect that is quite different compared to the regular brain zaps i've gotten before. I personally would say to be more cautious about supplements, herbs, minerals (though i'm mainly referring to supplemental minerals rather than the natural ones), coffee and such like that rather than food.
Just remember, if you (or anyone else) experiences some odd effects/reactions, don't automatically assume it's food-related, there's a good bit more going on with the Harmalas, the plants, the DMT, that people often times confuse/mistake for food reactions. It's better to be experimental and try to figure things out rather than assuming the worst.