Cancelling Syncing changes to live edit while its uploading will freeze UEFN

Summary

Noticed that when you open live edit, while it uploads the project (popup that shows Mbps and the mb that are uploading), if you cancel that, you are stuck in a popup that says uploading forever. Only thing to do is alt+f4 UEFN.

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Live Edit

Steps to Reproduce

Build a scene
Add custom things in the scene so live edit has to upload something
Open live edit
While you see it uploading (mbps and Mb progrss shown) hit cancel

Expected Result

Upload is cancelled instantly

Observed Result

Upload continues, cancel button goes away. UEFN freezes

Platform(s)

pc