Unwanted graphic appearing whenever I create new comp

i have encountered weird bug (or i'm being stupid) in after effects cc 2015.

 

if ever create new comp or hide layers of current comp, rather have blank composition in front of me expect, have text , icon previous video job designed.

 

no matter can't rid of graphic until start adding layers hide it.

 

i've restarted computer. reset ae preferences. still not working.

 

i've attached screenshot show appears when create new comp.

 

thanks people

go edit menu , select purge , purge everything....

 

go preferences , empty disk cache.

 

make sure ae date. there lot of cache bugs in previous versions.

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