Hello, Hans-Gerd!
Thank you for the detailed information as well as the updated screenshots. I’m not able to reproduce this behavior on your site.
I did also import some of your events to my local site (using the export feature from your site), while I did initially have some problems it was fixed by making sure the ‘Show Google Maps’ and ‘Show Google Maps’ boxes were checked. I also had to turn of a Chrome extension that I use called ‘Ublock Origin’.
- My suggestions for troubleshooting from here are as follows:
- Make sure the events that don’t show up in map view have a valid address or latitude/longitude.
- Make sure the Show google maps box is checked.
Upgrade The Events Calendar Plugin to our latest release version (4.4.5)
Hopefully, this will bring you to a resolution. If not please let us know and we’ll continue to help you debug.
Cheers,
Trisha