What I expected to happen was...:
Just expected to trade with some villagers when i found the bug.
What actually happened was...:
The menu appeared on screen for what seems to be less than even 1 tick, and then disappeared, and I was unable to trade, and this persisted, and still does happen, but only for a few random villagers. Keep in mind that they are all master rank, and there are a lot of entities in the village area. Also later the white text that shows up, for instance, when trying to sleep during the day, or using the debug stick, started also frame disappearing the same way.
Steps to Reproduce:
I don't quite know what causes this, but it could be entity overload, entity data overload, or some other obscure reason. This is the first and only occurence as far as I know and have seen. I apologize for the rather informal reasoning and lack of information.