Older Submissions not visible

I looked at your gallery and see what you are referring to. I am not sure I have seen this before. I do not know what could have happened. You say you cannot fix with the update feature? Unfortunately - I am not sure what can be done, other than deleting and re-submitting them. Nikos may have a better idea, or perhaps another staff member. Wish I could help, but as I have said - I honestly have not seen this before - usually an issue like this would have shown immediately after the upload, not later on.