I have upgraded the Test Complete Version and Test Execute Version to 12.30 now.
I am seeing following issues with this version.
I am able to run test cases on Firefox.
Tool is opening Edge and IE browser also navigate to the site but after that nothing happens and Process stuck (stop) there only.
If you End the Run then no error is displayed.
I am also seeing that in all browsers except chrome if i stop run in between then tool just displayed stopping but it is not stopped after so long time too then i have to kill process through task manager.