The snapshot of AGD I've uploaded above starts in the Events editor for type 0. I don't know if it's got something to do with saving a snapshot from Spin or what, but if you exit the events editor and re-select type 0 and exit again everything is fine until you return to the main menu and then back to events - type 0 again. It crashes upon entering the editor with the number 14 displayed to the right of screen.
Is this just Spin or is it doing it for everybody?
If anybody can try in another emulator, start afresh, Events, create type 0 using any default or none, exit, save a snapshot, then try going from the main menu back to the events>type 0 again. That's all I've done to create this snapshot.
Right, um, bit weird. I managed to get it to crash without even saving a snapshot. Closed SPIN, double clicked AGD tap, load, events, none, massive crash to Basic 48k mode. This was on +2a mode, now trying normal 128k machine and it seems to work fine so far. I'll keep you posted. It's as if SPIN itself has corrupted.