Mine also just started doing exactly as you described. I don't know what it could be. I restarted the tablet and re-downloaded the app. Nothing has worked.
I would recommend using Tower to fly your surveys with a NDVI Red+NIR Survey 2 camera from Mapir. Agribotix is the easiest way to produce a geotagged image. Its all automated, requires little know-how. Agriboitx's FarmLens Uploader will geotag your photos and upload them onto their server. The...