Good catch. I'll need to check that out ASAP. There is something funny going on there, even though I used it after taking the pictures without any issues.
The pins do need to be replaced eventually. Mine wore out about 1/3 of the diameter of the pin in about 300 to 320 hours of use. Knowing myself, I'll probably fill it with weld and run it some more.
It really shows that with any type of implement, it's important to do a walk around and taking a closer look at stuff like this every once in a while.
I checked a older picture from when the cutter was newer and you can see both pins.
View attachment 812509