Sketchup model gone

Hi
Please help sketchup model not showing up as normal you can only see it if you run lightup render.
Thanks
Hein
Wilgers Hospital.skp (681.2 KB)

Turn the Untagged tag on.

You should be using groups and component and you should not turn off Untagged.

Wilgers Hospital.skp (468.2 KB)

Hi
Were do I find it. So I know if this happens again.
Thanks
Hein

Tags pane is in the Tray.

Might be a good idea to go through the Sketchup Fundamentals here: learn.sketchup.com