A wandering merchant appeared near my base on one of our realms. I tried to interact with him. He seemed frozen. He did not have pack llamas with him. I accidentally hit left click and punched him. He then flew into the sky and disappeared. At then time this happened I was digging through some shulker boxes. Moving them around in my inventory. The game seemed to freeze a little and that is when i saw him standing near. I have not been able to recreate it to get video or screenshots.   EDIT: I did have it happen again. I tried to upload a video but it exceeds the size limit