Apr 25 2018
https://commons.wikimedia.org/wiki/File:A_lady_in_a_blue_dress,_by_Tilly_Kettle.jpg is an example of the error. The Description field used to be filled with the content of the field Image title from the meta data.
I am sorry, I can't reproduce the error anymore.
Apr 21 2018
It seems to be resolved, at the moment.