The recurring appointments should be visible in the next month as demonstrated in this screencast
from the Scheduler - Day, Week and Multi-day Views
If there are no errors, please prepare a sample project with dummy data(or modify the project attached to my previous reply) replicating the issue and send it to us in an official support ticket. That would allow us to investigate locally your exact scenario and help you more efficiently.
Once we have a resolution to the case, we can share the answer here for convenience and better visibility from the community.