lyric-syllable-magnetic-snap stopped working in 2.23.5—meta.classes error

[Simon Albrecht]

Dear list,

I’ve just upgraded to 2.23.5 from 2.23.3 and when I now use the attached 
library file, I get this error message in my log:

Interpreting music... fatal error: meta.classes must be non-empty list, 
found #f Exited with return code 1.

Can someone help with fixing it?

Thanks in advance and best regards Simon

lyric-syllable-magnetic-snap.ily
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