I’m having the same problem as these folks:
I’m stuck at either 98% or 99%!
I’ve tried a dozen or so times over Christmas and the New Year to upload with no success.
I even tried clearing out tokens as shown here:
I also tried uploading by bumping up my build number (from 2.3 to 2.4) in App Store Connect, rebuilt with the new build number and still no success uploading. Transporter app just hanging on either 98% or 99%. I’ve uploaded that file size (249 MB) before without problems.
I have a slow upload speed (just under 1 Mbps) in common with the folks with the same problem in that first link.
I will update to the latest Solar 2D build and Xcode and remove and reinstall Transporter and see what happens.
Any ideas? Most infuriating! 