TilingSprite render delay

[alex_h]

I'm using a TilingSprite in a game for the first time, repeating a 512px tile when at @2x resolution. The sprite size is just the size of the screen, so 1136 x 640 in this case. I preload all my game content but when I render the scene with the tiling sprite in there is about half a second or so before the tiling sprite appears. During this time all my other content is rendered in front of a blank background where the tiling sprite should be. Is this normal tiling sprite behaviour, or am I somehow inadvertently causing this by some other means? If it is normal for a tiling sprite is there any way to detect when it has been rendered? Then I could do a fade in or something to mask it.