Images sometimes show up in the wrong menu

[LJNielsenDk]

Imager version:
1.7.3

What I think is going wrong:
When the images in a category takes a long time to populate and you go to another category instead, then when they finally do load, they get added to the end of the list of whichever category you happen to be in at the time even if they don't belong there.

What I did:
I was looking around the available images and some of the images didn't seem to load so I continued to look through the other images and in then later the missing ones showed up in the wrong category after the ones that were supposed to be in in that one.
I closed Imager and tried it again which resulted in the same behavior.
And once more restarting Imager and going to the category that seemed to be empty and staying there, and they eventually showed up there and nowhere else.