Maps: Problem/conflict with events manager

Hello,

the guys of events manager told me to ask you: https://wordpress.org/support/topic/markers-show-only-after-page-refresh

I use the events manager and so pagebuilder on a multisite (subdirectories) with php 5.6.

Maps in events manager don’t load completely. It looks like it stops and no markers and controls are visible. When I refresh the page (f5) it loads sometimes completely. The problem could be reproduced in several subsites. When I disable the maps widget it works as expected (it’s not a caching problem).

On the same multisite the widget doesn’t work a t all, when I use domain mapping.

I can reproduce the problem also on a singlesite-installation: http://forum-seniorenarbeit.de/events/keywork-im-quartier-2/

Do you have any idea? Thanks a lot.

Daniel