I am trying to start a process instance using Rest API and getting this error. This is in Camunda 7.12 version and using SQL Server. I do not see any reference to column name INITIAL_ in any DB table, still this exception has occurred. Please suggest what could be the reason for this issue.
“type”: “RestException”,
"message": "Cannot instantiate process definition 986b766c-bfd5-11ea-9828-025056003891: ENGINE-03004 Exception while executing Database Operation 'INSERT HistoricVariableUpdateEventEntity[c9b0386d-ccb4-11ea-9b1b-025056003910]' with message '\n### Error flushing statements. Cause: org.apache.ibatis.executor.BatchExecutorException: org.camunda.bpm.engine.impl.persistence.entity.HistoricDetailEntity.insertHistoricVariableUpdateEvent (batch index #2) failed. 1 prior sub executor(s) completed successfully, but will be rolled back. Cause: java.sql.BatchUpdateException: Invalid column name 'INITIAL_'.\n### Cause: org.apache.ibatis.executor.BatchExecutorException: org.camunda.bpm.engine.impl.persistence.entity.HistoricDetailEntity.insertHistoricVariableUpdateEvent (batch index #2) failed. 1 prior sub executor(s) completed successfully, but will be rolled back. Cause: java.sql.BatchUpdateException: Invalid column name 'INITIAL_'.'. Flush summary: