This is what happens when you’re feeling over confident in you skiving chops - at least I know my sharpening skills are solid.
Was excited to discover hand skiving this wasn’t as difficult as expected despite the canvas backing and copious amount of PVA glue. Things were going amazingly well until they weren’t- sliced clean through my gusset. Had myself a little tantrum followed by panic that I wouldn’t have enough material to make another. Thankfully I did and you can bet I will be much more careful skiving the next one.
Yes, it happens unfortunately. You may have better luck on the next one if you perform a shallow skive on the reinforcement first, then skive the leather on the next lap around. The tricky part can be the glued canvas requiring much more pressure than the leather to cut, then there's a sudden release of tension afterward, which has your blade cutting the leather too fast to control.