Placing sprites in my scene causes other sprites to disappear

whenever I put a sprite for my background in my scene, after a certain point my player sprite disappears. anyone know why?

@SgtHobbs

For player sprite, put the ‘order in layer’ [in sprite Renderer component] of Player’s sprite greater than that of background sprite.,@SgtHobbs
For the Player Sprite, Put the ‘Order in Layer’ of player’s sprite renderer greater than that of background sprite.

I would guess this is a render order issue. Under the sprite renderer in the inspector you can set the order in layer for the background to be lower than the character. You can also assign and create sorting layers to help with this.