Error while open a discovery patternIssue Error while opening a discovery pattern Error: NdlException : Errors loading ndl: [XtextSyntaxDiagnostic: null:695 no viable alternative at input '{', XtextSyntaxDiagnostic: null:695 mismatched character '<EOF>' expecting '"'] ReleaseAnyCauseCorrupted while editing the pattern ResolutionFollow below steps when you have working pattern xml Please take backup of records below and delete themhttps://<instance>.service-now.com/sa_pattern_draft_list.do Also, if any in below:https://<instance>.service-now.com/sa_pattern_extension_list.do Delete them and export xml for pattern from other working instance and import to resolve the issue.