Dear Martin,
your setup and configuration looks way better than initially – congratulations.
Sorry to hear that it’s still not working for you. I can vividly remember our frustrations when approaching the Worldmap Panel the first time the other day. After investing time to learn its behavior and inner mechanics, things became clearer after each iteration.
Please also make sure to get the time domain absolutely right. I mean server time, workstation time and measurement time. Otherwise, data just won’t show up. You also might want to display your data in a regular graph panel first. However, I’m assuming this already works for you.
leaflet.js itself obviously has lots of things going on with ".x" attributes/properties. However, I have never seen errors like this on our journey but will nevertheless be curious about their origin.
Good luck fiddling with the parameters – if I only could help you better. So, please let me know of any progress you might be able to make. Otherwise, you might want to share an excerpt of your data to make your case reproduceable.
With kind regards,
Andreas.