Update from alpha2 to alpha5 breaks "Google Store Locator" map markers

Hello,
Not sure if this is the right place for what I experienced and if I can deliver the proper information.

I use "Views GeoJSON" for the Google Store Locator. With "views_geojson-7.x-1.0-alpha2" all was fine. Then I updated to "views_geojson-7.x-1.0-alpha5" and the map of the store locator shows a strange behaviour: Only one single marker of more than 400 appears in the map. But this marker is placed on the wrong place.

The view which exports the store locator information tells me that "page" is no longer the way to go, but to use "feed" instead. So I created a feed within that view and tried to adjust it to the page I used before. But the result is the same: Only one marker appears and that one is in the wrong place.

There is a difference in the output of the view: With alpha5 I get "<\/div>" where I get "

" in alpha2. So there are backslashes used now, but since my knowledge of php is close to "not available" I can't see if this is the problem.

I attach two txt files which contain the output of the view. One from the working Alpha2 and one from the feed in Alpha5. I copied the first two entries, hope that is enough.

Can someone see what the problem is? And does someone have a solution for me (except from staying with alpha2? :-)

Wish you all a nice end of this year.
All the best - Andreas