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'm having the same issue. No vendors spawn at the bubble tea counter. The only fix I found was to change the lot type, hire a vendor and change the lot back to a thriftea lot and it will spawn a vendor and teenage sims.