Giving certain blocks with a data value like
/give @p stone_slab 1 2 /give @p oak_stairs 1 1 /give @p wooden_slab 1 11 /give @p end_portal_frame 1 1
results in a missing texture, even trough they are used in game
But
/give @p planks 1 3 /give @p wooden_slab 1 3
works as expected (giving jungle planks / slabs)