Camunda process instance service tasks running multiple times

Created a BPMN workflow along with call activity child workflow . child workflow will run parallel work items. some time we are child workflow services tasks running multiple times or taking longer time then except. We have updated retry count is 0. To achieve parallel execution we have auto scaling enabled from system.

Please help us to fix the duplicate execution of services tasks or longer time.

Can you share your model?

Can you upload the BPMN files themselves so i can take a look at the execution semantics.

Can you also explain more about exactly what is happening in terms of duplication - what is being duplicated exactly and how are you seeing the duplication

auto-content-extraction.bpmn (11.2 KB)
auto-extraction-process.bpmn (6.5 KB)

In child workflow - table extractor or image extractor services tasks are multiple times (these services tasks Auto scaling enabled- HPA) and because of this it is not moving into next step in parent workflow.