I am developer of the mapping plugin Leaflet Maps Marker (http://wordpress.org/extend/plugins/leaflet-maps-marker/). A user recently reported that there is a conflict with your plugin. I installed Google Analytics v4.2.2 on my development site to check, chose a tracking profile and got the error when trying to display my test maps on frontend right before the map:
Notice: Undefined offset: 0 in /home/htdocs/wp-content/plugins/google-analytics-for-wordpress/googleanalytics.php on line 1131
Please see http://beta.mapsmarker.com/ for verifying the error (please note, debug is turned off, so the message above is not visible right before the map panel) and http://www.mapsmarker.com/demo for a working version of my plugin.
I looked into googleanalytics.php on line 1131 but didnt find out, why your plugin causes my maps not to show up. Can you please take a look into this issue? If there´s anything I can do in my plugin to solve this issue, I´d be happy if you could give me some hints!