I removed all mods and custom content, started a new save file, moved my household into copperdale, and visited the bubble tea store. When at the store, vendor does not spawn. When trying to interact...
Ideas
I have also been having the issue that the vendor does not show up to be able to order bubble tea/ food. I understand that during events like fashion shows and comedy nights one never does, but under the normal times one should. This has been happening for a few months also, just never had the time to report.
The notifications for the events also appear to be over saturated as per Simsimsere response.