Can't Trade in Marketplace Pass World in Minecraft Pocket Edition

I can't trade in minecraft marketplace pass world such as My Life in Sakura Shores and Ninja Weapon Academy. I can trade normally in normal world with villager, but in marketplace pass, I couldn't. Even though the developer of the map (My Life in Sakura Shores) already updated the map, and I already update my minecraft version, I still couldn't trade with villagers. I report this to the customer service and she (Olivia) said that it's a bug. Help me, please. Thank you.