Certain tunes simply won't play (latest)

[ruby-R53]

I tried playing the following files: https://drive.google.com/drive/folders/1R6P-v9PnRjC12681Rd61fKZegbmGkCsK?usp=sharing For some reason, instead of playing them, I don't get any sound and my CPU usage rapidly increases. It's as if the program misinterpreted an opcode and just doesn't know what to do.

I compiled the program with GCC 15 on FreeBSD 16.0-CURRENT.