Rated 3 out of 5 stars

Please display not DateTime but DateTimeOriginal or DateTimeDigitized .
It is because DateTime is not the time of a photographing day but change time.
thank you.

This review is for a previous version of the add-on (0.4). 

This might happen if there are only binary Exif data. Those are evaluated in the order they appear and the first one wins the trick.
This is a problem for some fields where there are alternatives which should have lower priorities. I now added some code for the next version so DateTimeOriginal will always have priority.
To test this for sure, please send me one of the problematic pictures.