An update. With a build of MapGuide that is close to the soon-to-be-released-i-promise 3.1.2, I can't reproduce this disappearing features effect or the "Invalid index: -1" error.
The major giveaway when I was trying to reproduce this is that when I was previewing the various data files you have supplied through the feature source preview, my "MapGuide Debugging Information" actually shows the total number of features instead of "-1" as indicated in the video you posted. The OGR provider has undergone many quality-of-life improvements since the version that shipped with the 3.1.1 release. This might have been one of the issues fixed in the process. I guess wait until 3.1.2 is released and see if your issue persists. - Jackie -- Sent from: http://osgeo-org.1560.x6.nabble.com/MapGuide-Users-f4182607.html _______________________________________________ mapguide-users mailing list mapguide-users@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/mapguide-users