All the actors running away from the viewport

Hi,

I am new to UE.
When I clicked the play button, all the actors ran away quickly from the viewport and disappeared.
Why? How to make them stay in the viewport.

Regards,

Edward Yuen

screenshots? Not sure exactly what you are trying to describe

I think he has a bug of actors moving to fast… that is or his actors are eye-phofic

Moved you the default player start, where no floor is and you are falling when play is pressed?
The thing with gamepad on it, or search for player in right list.
Move it where you can fall onto something.

Thanks for your help.

I have fixed the problem by moving the default player start to someplace having floor.