Hi @shkico
I’m afraid that I can’t reproduce this issue on my end.
Maybe you can try to reproduce the issue on one of the WordPress’ stock themes (like Twenty Fifteen) with other plugins deactivated? If the issue disappears, then you can activate the theme and plugins one by one to see which one causes the issue.
You can also check the JS console for any errors.
If you still can’t fix the issue, the best way would be asking Google Map community. This page should give you more idea about it: https://developers.google.com/maps/support/.
I hope this helps.
