After uploading any number of images to NextGen Gallery, I am brought to a screen of just utter symbol chaos (screen two in the image below; it looks to be the .jpg file in text format?). The first image I selected to upload is in the gallery, but none of the others are. The first image also does not have a thumbnail, and will not allow me to edit it ("Error updating thumbnail").
I have replicated this error with both the latest version of NextGen (1.9.3) as well as 1.9.2
Does anyone even know where to start on this issue?