All our Community sites in Production and Sandbox Orgs that use Skuid pages - either redirect ( action=“{!redirect}?page=Home” ) or embedded (<skuid:page page=“Home” />) - are now throwing Visualforce page errors when logging in as a community user. Everything was working yesterday but now ALL sites are throwing the same error - this includes sandboxes which haven’t been updated or visited for months. The sites are working as normal when logging in as the Internal Administrator.

There is little-to-no debug info available - only a useless “CODE_UNIT_STARTED|NEXTERNAL]|06624000001QdmP|VF: /apex/Exception” message - and the browser console reports a useless “HTTP500: SERVER ERROR - The server encountered an unexpected condition that prevented it from fulfilling the request.”

Has something been updated at Salesforce/Skuid regarding permissions or licences?

This is a critical issue as our community sites are now unusable