Back in the day, HP scope probes had a rugged music-wire hook on the tip:
These days, scope probe tips use ordinary sheet steel punched into a hook shape:
By sheer bad luck, the first probe out of the bag had a mis-punched end with no griptivity:
Dunno what happened, but it was definitely sheared off in the factory.
After I finally recognized the problem, I shaped a crude hook with a safe-edge needle file and continued the mission:
A quick note to Siglent put a replacement probe tip in the mail, so it’s all good.