SawStop Blade Lift Lock

Anyone know what’s going on with the blade lift lock on the SawStop? It doesn’t seem to be working right. It’s not a huge problem for use because it’s holding tension and the blade stays in place, but I wasn’t able to lock it down like it ought to.

There’s a thread about someone else with the same problem here. Is it possible that the key was left out of the keyway last time it was disassembled/reassembled?

That’s new. I’ll check it out tomorrow.