I just installed apr CU 2013.
After that i'm getting "Unable to process this request", when editing an article in a Publishing site,
the article is custom, custom content type, custom layoutpage that inherits from std article.
It seems to be related to 3 Fields which are taxonomy Fields. When i get the error, the Fields comes up empty.
If i Close the page after it has been checked out, then just do another edit page, it Works ok.
The taxonomy Fields are loaded...
ULS:
Name=Request (POST:https://portal.dev.local:443/News/_vti_bin/TaxonomyInternalService.json/ValidateTerms)
The security validation for this page is invalid. Click Back in your Web browser, refresh the page, and try your operation again.
Any Tips ?