Hi Vesela,
We have upgraded to LR12. It worked fine for few days and then same problem occurred again. After lot of investigation, we have observed that it looks like the issue is due to time sync client applicaiton that was running on this machine was causing the issue. When the offset is very high (more than 10seconds), load runner behavior changes. We want to use the time sync client for syncing time from time server because we are using Windows VMs as load runner controller and generator boxes and time drfits lot of times in VMs. Please suggest if there is any good solution for syncing time in windows and linnux VMs. FYI, the tool name we are using is "timesynctool".
Thanks
GVR