The thumbnail size in the GPS correlator dialog box list is so small that it's unusable. Previous versions used to have a larger thumbnail so it was possible to see what's in the image before dropping it on the map at a given location. There are buttons to re-size the image once it's added to the map, but it doesn't make sense to add it to the map just to be able to enlarge the thumbnail.
The larger preview is available in "Details" tab from right side bar from Geolocation tool. Gilles Caulier
The preview version of tool has always use the same thumbnail size than now. Nothing has changed. Gilles Caulier
The "Details" tab is perfect. Thank you.