Hi,
It is totally random. Sometimes it occurs when executing directly after a reboot. My 'workaround' is to kill all TC related processes in Task Manager and the relaunch TC. After 2 or 3 cycles of this, TC eventually starts navigating OK.
TC Version: 12.42.3048.7 x64
Chrome: 64.0.3282.140 x64
Chrome instances are being terminated fully prior to opening. Also, the times directly after a reboot (where TC and the execution of the test is run as the first thing; no other program or Chrome run prior) have no Chrome beforehand.
Please see the code snippet in OP.