While running TruClient scripts, Chromium browser application screen is shifting to the left side.

While running TruClient scripts, Chromium browser application screen is shifting to the left side at the run time. Once the UI shifts, the vuser cannot perform later operations as the object is not on the UI to identify due to which test is failing. But this behaviour is not being seen upon tracing the same workflow manually.

Is there any possible reason for this issue?