What view have you turned on?
Here is everything ok with the margins.
I don't know, but it works fine on a new document. So it might have been that I converted the file over the previous version.
yes, it seems that is a conversion error. Check the size of the pasteboard in the preferences.
And change that.
Or export to IDML and open the IDML file with InDesign.
If possible export to IDML with your older version.