bout 30-40% of images remain in the "For Review" folder during moderation

About 30-40% of images remain in the "For review" folder during moderation. That is, images are mostly not rejected or accepted.
For example, over the last 3 days
- 25 accepted
- 36 remained unverified
- 44 rejected.
during this time

the "For Review" folder  remained as unverified -

Yesterday I sent images for moderation.
1 image - accepted, the other 3 from this series remained in the folder as unverified.
Some series are not checked at all, for example, images with cotton, ceramics, emotions, a veterinarian, back pain.

the "Accepted" folder (during this time) -

I also noticed that gradually in the "For review" folder, older images, approximately in the middle, 10-20 pcs./day go to the "rejected" status. None of them are added to "accepted". But these are not the oldest images, but approximately from the middle. None of them are after that in "Accepted, passed moderation"

The print screens show that some images simply did not pass and, as experience shows, will never pass moderation in the future. And these are often very bright and interesting illustrations.

the "Rejected" folder (during this time) -

In the text, in the TITLE of all sent images, I write the first words: "AI photography, "

Some kind of strange game during moderation - not checking some of the images.

Please explain its rules.

Best wishes, Anita.