AviUtl UTAU Screen Display Not Working?

UtaJoule

Teto's Territory
Defender of Defoko
I'm trying to make a show-tuning video of a certain song, and for some reason it doesn't work when my UTAU is saved with the ust. When I save the ust with another UTAU (say Defoko, for example) the ust will load into AviUtl and show the ust on the screen. But when I have Joule saved, it shows this message.

https://imgur.com/dReh6ve

What does this message mean?
Is there any way I can fix this?

EDIT: It only works if I use an UTAU other than my own.
 

partial

UTAU English advocate
Global Mod
Supporter
Defender of Defoko
'The UST file is not valid', basically.

Does the UST play back okay with your UTAU? Where is it saveD? Where is your voicebank located? How long is the folder name?