Cannot hide hidden objects

[steve_reneeandsteve.net]

I have a fairly large model in Sketchup Web, and now suddenly I am seeing all the objects that should be hidden – covering my view with dashed lines representing these objects. Nothing in the “View” settings changes this.

I’m attaching a small file representing one small model from this larger model, in the hopes that you will see the same thing I see (a whole lot of hidden groups) and figure out how I can get back to the view I am used to seeing.
hidden objects problem.skp (34.5 KB)

[Box]

Tap k, it is the toggle for Back Edges.

[steve_reneeandsteve.net]

Thank you, that worked!

Please note that this command appears nowhere in the SU Web menu or tools, at least that I can find.

[DaveR]