It worked before though. I was working on my UTAU's Act 2 using an -ERROR ust. When it finished loading, no sound came out, it did the same with a few utaus(Hachi Makune, Ritsu etc.) But when I tried Sora's Act 1 it worked. I was planning to use her Act 2 but it couldn't work. /headdesk. It's on every other UST, and my UTAU is encoded in Hiragana aliases.
I double-clicked the samples in the Voice Bank Settings, still no sound even when I play the notes. I have my UTAU in my User Folder. I can also see them in the oto editor.