Anchor Points Have Disappeared

I'm fairly new to Photoshop and just tried creating some vector shapes to animate with. I formed all my shapes on a few different layers and have turned the layers into smart objects. I followed all the steps of the course I'm learning from, but when I go to open a couple of the layers as a smart object I can no longer manipulate the anchor points with the convert point tool, and the anchor points have disappeared entirely. I can transform the shape but I can't clean up the edges. The weird thing is I can still find the achnor points and manipulate them on most of the other layers in the saem project apart from 2 of them. Have tried seaching all over the web for help but nothing seems to bring the anchor points back.

Also it's worth noting that I've tried going to View/Show/Layer Edges but that just create a blue square around the shape and doesn't reveal the anchor points of the shape itself.