I've upgraded activiti engine from 5.12 to 5.15. After completing a user task form, the engine randomly creates two instances of the same task when it should be one task. There is only one flow between the user task form and the problematic service task. I used standard configuration .
This error only happens in our production environment , the business process is large and the task is located almost at the end of the bp. is there another way to check throw logs… , tomcat in debug mode, database data?
Problem solved . I realize that i was sending the same signal rest call twice at the same time , so activiti engine takes two calls and creates two tasks, i think activiti doesn't complete receive task when the same signal arrives and also gets processed.
Hi I've got probably the same problem. You solved the root cause problem but how did you get rid of the already duplicated tasks? (I cannot complete because of duplication and delete because they are part of the corrupted processes)
