In this case, it clearly failed because the user was using an invalid API key. That's user error, not a sign of malfunctioning software.
If it is not working for you, you should probably describe your error and get help instead of vagueposting like this. I assure you that butler still works and would be happy to help troubleshooting.
I asked around elsewhere (to clarify: it’s new to me) and was told Butler wasn’t working. That was why I was surprised it is.
At this point, I’d like a thorough breakdown of how Butler is supposed to work, like what it’s meant to do and how the devices communicate. Is it the same as it was two years ago?
Asking what each error means doesn’t sound worthwhile, because I don’t have trust in the process at this point.
Whoever told you that is wrong. I have a build pipeline that I set up two years ago that uses butler for uploading games, and it works just fine. It always has just worked fine. Of course, it will break occasionally if itch.io itself has an outage, in which case you should retry later.
Because of that, it is not possible to fix your problem without the exact error message. butler uses HTTP and can run into every potential failure state that HTTP can run into, and I am not giving you an extended lecture on how HTTP works. Show me an error message, then I can try and help.
(Probably better to do that in its own thread than to bury it here, though.)
