I have no clue why, but lately whenever i try to run my game engine it shows a blank grey screen with nothing on it. I'm not sure as to why its doing this so i am asking you for help.

noober43 wrote:

I have no clue why, but lately whenever i try to run my game engine it shows a blank grey screen with nothing on it. I'm not sure as to why its doing this so i am asking you for help.

Have you added a material?
Is the viewport on textured mode?

it could be because of normals being flipped up. Go to Edit Mode using Tab key.
hit Ctrl + N to recalculate normals.
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