@vicmora : yes, I added position to various spots(e.g top_left; bottom_center,…) and tried various width and heights but still frame not visible.
Tried as well a complete empty config with only this module loaded-> no sucess.
I guess it might be an Google api key issue: Could you please show you google api devboard: Which service needs to be activated in google api? An which is showing traffic on your google api?
Thanks.

@blue2monster: found now a workaround with the iframe module: This one works… but I haven’t made to switch the traffic layer on

@vicmora : I’ve been trying all night long: just cant get the map to be shown.
I can see that the module is started in the dev logs.

Funny thing: If I add some different HTML Output in the module.js It is printed on my screen, the only thing missing is the map.
Same thing is happening on MMM-fuel and MMM-googlemap. Modules are working but the map itself is not shown.
Different one for iFrame: This one is working.

Interesting fact: If I check on the google dashboard for the traffic of this specific api key, I do not see any traffic. Is there anything special in the google api that I need to enable, or any additional module that needs to be installed.

Any ideas: Thanks a lot for the help.