I have an issue that I am trying to solve with Jmeter. I created a test plan with Http request + parameter from user defined variable. One request with id: 11001254. I duplicate the thread group and put in user defined variable ID = 11001419. I run them together and saw in the results that Jmeter took the ID 11001254 and run it with both threadgroups. even in user-defined variable it with different value? How can I tell Jmeter to run in each thread group its own user defined variable? all test is 20 minutes, and to run them one by one is hour.