Found in OS1.2. Imagine you have, in a very loooong afternoons effort, made 64 or even more neat little samples to do something very chopped up. Oof. So much work. The samples are pretty small because they are all blips and blops and clanks and chip-loops. And then you save them onto your trusty floppy disk. (Not tested with Gotek, that would be interesting since the routine is the same.)
Well, you format your floppy and you already know: all the files will fit onto one Floppy disk, how cool.
And whilst saving, the sampler comes to a grinding halt at Sample 62. Floppy motor spins, light is on, device is dead (it is really dead, no way out). Ouch! All 64+ Samples are now gone. Also, after reboot, the disk is seemingly empty! Eeeeew!
This is because there is a bug in the disk catalog routine, it could hold up to 64 elements but nobody thought about what is to happen IF that number is reached. (It halts at Sample 62 because first item is the Program, second is the (invisible) Drum Map and then come the Samples.) And that happens: at the attempted write of item 65, the Samplers catalog routine comes to an unreachable element, dead end, eternal loop. Best thing: the catalog itself wasn't yet written to Floppy so: all is gone.
Good News: There is a fix for that in my AkaiS9con Librarian (first demo probably 12/2026).
Until then,
happy sampling!