I have 1 pound on all my products, but no dimensions. However, to clarify, I originally had it set and it gave me options. At that point, it was working okay and I was able to select types of USPS options.
I unchecked all other Options, except for US priority, because I thought my shipper could only do US priority. After confirming otherwise, I rechecked the other boxes to provide choices again, but nothing showed up.
I just don't know if I missed a config or button somewhere.
Also just added 5" for all dimensions to double check, still only gave me 1 option.