Uploading a file is not filing it. Three things still have to happen before anybody can open it or rely on it.
The screen shows all three separately, on purpose. A single green tick would hide the difference between "we have the bytes" and "this is on the record".
Accepted means LEAT has taken the document into custody: the exact bytes are recorded, hashed and kept.
It does not mean the document has been approved, signed, paid, published or agreed to. Those are separate acts by separate people, and each one has its own screen and its own record.
The file is kept, and it is never opened. You will see that it was refused rather than a vague error, because a file that was refused is something the security team may want to look at.
Upload a clean copy. Do not rename the refused one and try again, because the check is on the contents rather than the name.