This is a repeat of a previous problem that was reported and then solved by updating to the nightly build.
While attempting to upload a 26 GB file to our S3 server, a 443 error keeps interrupting it. Unlike the last time, it's not coming at a set point, but at a seemingly random point somewhere in the middle. When I click "Try Again", the Transfers window enters a loading screen and won't reply to commands.
After being seemingly frozen for several minutes, it starts the upload from the beginning, but it's glitchy, as it reports the total file size as 0 B. (That is, it claims to have uploaded "X MB of 0B). The Stop button is unresponsive in this state.
This is version 4.7, build 17210. If it makes a difference, this is the second time we've uploaded to this directory using this build, and the first time worked fine.
Thanks for your fast replies! We love you guys and really don't want to deal with BucketExplorer. :-) Let us know if there's any info you need.