ALM runner stop working when we run test set from Test Lab module

Hello Team,
I am having automated scripts developed in test plan(Scripted components) and when we load these tests in Test lab module under one test set and try to run entire test set, ALM runner executes 5-6 test and then stop working, but when we execute individual tests, all run fine.

I am having all resources under test resources tab in ALM and at runtime, we add one local temp sheet and import data from test module from test resource.

Can you please help me here to know where it is going wrong or is this issue related more with UFT memory usage while execution or with test data(which is in excel format)