kittey said:
You might be able to fix it by removing all posts and adding them again. That would make it harder to debug, though.
My guess is that the pool data has all the post IDs but the post data doesn’t have the pool ID.
Problem is I don't own the pool and because of that I don't think delete the images from the pool from the pool management side.
I considered doing the image by image addition to the pool but wanted to have it looked to figure out why before I did that.