https://bz.apache.org/bugzilla/show_bug.cgi?id=64984
--- Comment #2 from Dietmar Berchtold <dietmar.bercht...@nagarro.com> --- It looks like this is not only limited to BackendListener element. Also other elements are affected but only in some combinations. e.g. In a complex TestPlan with a lot of "Thread Groups" some "Thread Group" elements work as expect, others behave as described in the issue. When using Version 5.3 of JMeter the issue does not occure. I also tried the same Test Plan on an other Win 10 Machine. There I could not reproduce the error. -- You are receiving this mail because: You are the assignee for the bug.