CSS syntax error in tag ‘style amp-custom’ – bad url.

Good Day;
Yesterday Google stopped serving hundreds of my AMP pages because

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Search Console has identified that your site is affected by 1 AMP issue(s). The following issues were found on your site. Top critical issues*

CSS syntax error in tag ‘style amp-custom’.

*Critical issues prevent your page or feature from appearing in Search results.

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And when I ran the AMP Checker it did indeed fail with:

“CSS syntax error in tag ‘style amp-custom’ – bad url.”

https://search.google.com/test/amp/result?id=4MpdnWaj0Jsh_yy9OazuPQ

I have read several similar threads, and in each case you have indicated the issue was caused by a plugin that was not yours, so the solution was to disable each plug-in, and rerun the test. That is what I did. However, as you can see in the screenshots below, even after disabling ALL plugins (except AMPforWP) Google is reporting the error and blocking the indexing of my pages.

Can you suggestion a possible solution to this as I am stumped.

Thanks

  • This topic was modified 12 hours, 4 minutes ago by calgarytech.
  • This topic was modified 12 hours, 4 minutes ago by calgarytech.

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