I've let it run overnight, starting the music generation at 9:30. The Bar sets to one specific spot and just sits there. I'm not entirely sure if I've missed anything in the download or it's really just a bug overall

Here's the visual problem example image, hope it works well. Let me know if you need better, and I'll try my best

I've seen this happen with mp3 files downloaded from free converter websites (youtube-to-mp3, etc). This should be fixed in the next update; for now you can convert your tracks to .ogg (with something like https://audio.online-convert.com/convert-to-ogg) before running them through the tool.

Pack generation should take seconds/minutes for the number of files you've selected.

@bradytheinventor thanks for that, I'll use the .ogg converter and see if that helps.

Should be fixed by c6f0dd1, will do more testing before the next release.

I haven't seen this bug anymore in testing, so I think it's fixed.