[Pattern Designer] Troubleshooting the pattern is not able open in designer with error "Pattern id is missing"Issue Sometimes, when we try to open the pattern in pattern designer it may fail to open with error as "pattern id is missing". In such cases this KB will help how we can debug this situation. ReleaseAll..CauseThere could be multiple reasons why it throws this error but underlying issue is the pattern is missing one (or more) of its dependent records like (extension, related library references, etc) - May one of the referenced Library is orphaned / deleted. - Extension that is being used in the pattern might be deleted. - Some of the tracked files are orphaned and still have reference in pattern.ResolutionCopy the pattern sys_id and goto sa_pattern list view and look for this sys_id.Open the pattern record and copy the pattern text in text editor.Now check for individual references (like extension, related library references, etc) sys_id and check for those records in their respective tables.If any record is missing then try to get them from other instances where there is no issue. Simplest solution would be goto deleted records (System Maintenance >> Deleted Record) and search for payload contains the sys_id of pattern (as copied in #1). If you find any try undeleting the record.