old:
normal_double_s.png
trapped_double_s.png
new:
normal_left_s.png
normal_right_s.png
trapped_left_s.png
trapped_right_s.png

other image
command_block_conditional_s.png
command_block_front_s.png
command_block_side_s.png

Chest textures should be fixed now

Brand new command block textures, no more problems :)