After pressing End Turn, having used my coins with Bartender Bob, he literally blanked me. His emote was blank, which I thought was quite rude. Anyway, I’ve attached a screenshot. Hopefully my card history on the left will suffice.
https://imgur.com/WYAd5dn
The Bartender Bob (Friendly Encounter) with empty dialog bubble has been reported many times and is a known issue: Updates for The Dalaran Heist - July 1 2019
Ensure to search first before posting to reduce duplicate issue threads.
Maybe Bob is swearing at you, and they don’t want to write it.