wrong canonical link in Google cache AMP page

I have an issue with google cache AMP page, Adsense auto-ads is not working, google adsense support told me that the canonical link in the (google cashed) source page is wrong, but I don’t know how it could be possibile considering that in the AMP source page is correct.

In theory the link should be something like this
<link rel="canonical" href="https://www.example.com/url/to/full/document.html">

In the google cashed source page is
<link rel="canonical" href="https://www.example.com/url/to/full/document.html?amp=1">

Source page of my amp page has the correct canonical link
<link rel="canonical" href="https://www.example.com/url/to/full/document.html">

So in my amp page the canonical link is correct, but in the copy cashed by google is different and it reprensents my amp page url.

I do not see why google should do it, probably some other elements in my amp page is getting google in error while cashing page.
Maybe it could be something related to wordpress AMP plugin.

Any ideas? Could be something related to AMP or wordpress cache in your opinion?
Thanks
Andrea

• This topic was modified 3 years ago by temaki100234.