Hi,
I've made about fifty customs over the past year-plus and never run into any issues with the toolkit, but I've been getting this error with my latest one (see the attached screenshot). The message always pops up after I'm prompted to save the psarc file, so it never lets me actually save it, even though it's apparently created successfully.
I've read some of the threads that involve similar issues and tried various fixes suggested in those (checking showlights, removing overlapping notes, making sure all boxes are filled in, changing from the .wav to guitar.ogg, updating to the latest versions of the toolkit and EOF, etc.), but none seems to be the underlying issue.
Any help would be appreciated; thanks.