Locations do not show up location map, instead world-view

Dear EM-Support,

i hit a really mysterious issue with maps in locations.

Maps work generally great for a longer time and still do.

Now, we discovered a new issue, with is unclear since when it occures.

We have maintained the details locations view with a little map of the location.

We as well maintain an overview map with all locations.

Now, on SOME of the locations the map does not show the location anymore, but a “whole-world-view”.

When i counterproof the “view in larger map” of both, working and not working entries, the “ll”-paramter for longitude and latitude are only shown on working entries. On non-working entries, it shows “ll=0,0” – so, empty.
When i counterproof the location in the backend, it shows perfectly up with it’s proper location for all locations.
When i delete the values of columns longitude and latitude in table wp_em_locations, they get filled again as soon as i save the location.
When i add something to the title for one specific location entry in the backend, it works again: adding “(München)” to the title, brings up the map suddenly. Deleting if again, does again not bring up the map again; adding only “(M)” does as well not bring it up.
When i try this with a new created copy of this specific entry, it behaves exactly the same;
When i try to add a little string to another specific entry, it does not work, regardless of how long the addtional string is;
When i change the post-slug of the locations, nothings changes;
When i downgrade em to 5.9.0, nothing changes;
When i disable the Borlab-cooke-plugin, nothing changes;
Now i’m really pretty puzzled, since:

the geo-coordinates have to reach somehow the map-widget; they get lost on the way from the database to the frontend;
but just on a random number of entries; there’s no rule when a entry works or not; we copied entries in the database field by field – didn’t work;
=> some work, others not – couldn’t make out a rule
It was not a breaking change, since a former release works as well NOT
How can you please support us here?

Links:

Overview of locations
Overview Map
Single entry, working
Single entry, not working (about > 50%)
Thank you!

Thomas

PS: I tried to enter this question in your new ticket system of the EM-site, but couldn’t! I mentioned me that i probably have wanted to post an issue twice, reviewed it and couldn’t find an entriy of it! ???