Sound test + fpscap 35;timescale 5 = SIGSEGV

When using the unlockable Sound Test menu option and browsing sound effects (not music), the game SIGSEGVs if fpscap is set to 35 (disabling interpolation) and timescale is sufficiently above 1.0 (sometimes 1.1 is enough, other times 1.2 is too little, but 5.0 should be consistent). I see the caption/subtitle of the sound in the bottom-right for one(?) frame before it crashes.

I use a 64-bit Windows build, compiled from commit e59684b1 using mingw-w64-cmake (with the Ninja generator), mingw-w64-gcc, and mingw-w64-make (if that's used?). Since I use a 64-bit build, I think that there's no useful crash log, and latest-log.txt doesn't have anything between $timescale 5 and Process killed by signal: SIGSEGV - segment violation.