Uplink stuck when uploading

[leobackes]

Hello,

Recently I was configuring some backup scripts which involved uplink to upload the data to storj.io.
When doing the first run, I stumbled at this problem that uplink transfers the first ~1.9MB then it stucks for a bit and slowly upload more data;
The weird part is that, the upload, reaching 100%, won't finish, and stay stuck at the 100%.
The file doesn't get added if I list the bucket from another session, and if I Ctrl+c the process, it won't add the file either.
My key and the uplink works fine on my machine, but in these tree VPSs I'm trying to backup, it simply get stuck.

I tried the current release, as well as some older releases, none worked.

One of the VPSs is:
Ubuntu 20.04.6 LTS
1GiB RAM
single core

the other is
Ubuntu 20.04.4 LTS
512MiB RAM
single core

I'm ruling out network issues, as these VPSs are from separate providers on very different network links.

The uplink doesn't complain at any moment... I tried with --parallelism and --transfers variations with no luck.
File size doesn't seem to change the issue either, as I tried with ~75MiB and ~2MiB files.

[jtolio]

Our progress bar doesn't currently capture the work that remains at the tail end of flushing buffers to a variety of nodes in the network. It's a bit of a fib. If you let it run for a while, does it ever finish?

We could probably diagnose exactly what it's waiting on if you'd be so kind to let it sit at 100% for a bit, then hit Ctrl+\ and attach the output here.

[leobackes]

Well, idk if it is something with the nodes tho, as the upload works fine on my machine.

I'm attaching the output as you mentioned... I allowed it to sit at 100% for about 10 minutes.
I'm also including cpuinfo, in case of cpu features make differences...
uplink_output.txt
cpuinfo.txt