I have the same issue. I used to have a proper page before I did the update.
After the update, once I have more than one map…the maps did not show. Here is the link to the page which should has 5 maps under each topic:
Update: I did roll back the basic plugin to 6.0.18. it did not solve the issue. It seams to me that the Pro version is the cause of the problem. it is v. 5.29
I hope I could find v. 5.28 somewhere, or fix the issue with 5.29