xcode organizer uploading app stuck at 100%

For a few days, there is a problem with xcode organizer and transporter when uploading a build.

I have multiple apps and some of them has 20+ builds so I'm quite familiar with some of the issues. But this one is different.

Example:

One of my app normally takes ~10 minutes to upload. Now it takes 10 minutes to fill the uploading progress bar and stuck there for more than 1 hours

- I tested with 2 different apps with different frameworks

- I tested with both xCode and Transporter
- I tested with different network connections
- App size didn't change between two builds

- Both xCode and Transporter uses JAVA under the hood to upload the app so I can see how much it uploads just by looking at Activity Monitor -> Network -> Sent Bytes

- This is at 9:35 https://imgur.com/akiaHDp

- This is at 10:05 https://imgur.com/L7r0KAj

- My app size doesn't exceed 100MB!