Take a pic of-
The hub showing all the holes, not just 1/2
The entire wheel, centered in the pic.
The 2 spokes on either side of the valve hole and their corresponding location on the hub. Little colored 'flags" or something to match the hole in the hub with the corresponding hole in the rim.

Most likely, you started the 1st spoke of the 2nd or 3rd set in the wrong hole.
Look at the other spokes- Do toy have a similar group that will be too short?