Failed to instantiate a processor of type ‘”Sitecore.Xdb.MarketingAutomation.Processing.EventProcessor”
If you see the “Failed to instantiate a processor of type ‘”Sitecore.Xdb.MarketingAutomation.Processing.EventProcessor”” error in your Marketing Automation Engine Logs (located within the AppData/Jobs path, not the actual Marketing Automation Role), there are a few things to check. This issue is generally caused by the Marketing Automation Engine Windows Service being unable to communicate to xConnect …