Particle system wont display in game view for first time.

Hi,
I am using Version 2017.2.0f3 (46dda1414e51) Personal.
I have a particle system on the game which seems to work fine.
when I press play and so I can’t see the particles in the game window.
if I go to scene view and then go back then the particles are showing up,
also if I undock the game view the particles starting to show up.

this happens only if i start playing the game when the game view is docked to default place,
if I undock it and start playing the game everything seems to be fine.

what can be the problem?

Thanks,
shortyh

Sounds like a bug. Can you file a bug report please.