Delayed apartment background check

[Mitch242]

So I have a question, I recently applied for a six month lease on an apartment since we are selling our home and it quickly sold and we have to be out by a certain time while we find a new place in a different state. I completed the application for the apartment, paid the fees, submitted my income documents, and then complete the background check. The background check came back delayed. Is there something that could be delaying it, I thought with Apartments all they check is things like employment verification, credit check, tenant history, income verification Etc. I received an email back from one of the apartments Associates in they told me to submit my income documents and asked me when I wanted to move in. But the background still shows delayed. Can someone help me because I have no criminal history and no evictions.