SOME of the things in this pack show these bugs 
not all bugs listed have related assets in this pack
this is more of a reference for finding those that this pack points out


GUI issues from Notch days

https://bugs.mojang.com/browse/MC-5024 Reticule isn't centered
https://bugs.mojang.com/browse/MC-67532 Hotbar selector mapped incorrectly


Hardcoding issues

https://bugs.mojang.com/browse/MC-36042 Pitch changes on sounds are hardcoded
https://bugs.mojang.com/browse/MC-50817 what causes culling is hardcoded, causing states to cull states
that shouldn't be culled (like iron bars) and some things not to be culled that should (sugarcane)
https://bugs.mojang.com/browse/MC-85128 Fire charge doesn't use model
https://bugs.mojang.com/browse/MC-84593 Fire chare is dragon fireball (also doesn't use a model)
https://bugs.mojang.com/browse/MC-26572 Skeleton/Wither skeleton don't render the hat layer, the mobs themseleves do
https://bugs.mojang.com/browse/MC-12699 Grayscale images render incorrectly
https://bugs.mojang.com/browse/MC-30445 Swamp/mesa biome colors hardcoded
https://bugs.mojang.com/browse/MC-12959 Activated TNT rotates 


Regressions

https://bugs.mojang.com/browse/MC-85132 Fast mode doesn't work properly on leaves
https://bugs.mojang.com/browse/MC-85134 Rendering in achievements menu is messed up
https://bugs.mojang.com/browse/MC-85135 Projectiles based on RP models are smaller than they should be
https://bugs.mojang.com/browse/MC-85133 Items in 3rd person don't use backface culling
https://bugs.mojang.com/browse/MC-83905 Clock/compass animate incorrectly
https://bugs.mojang.com/browse/MC-66485 Texture projections broken on certian faces


Other

https://bugs.mojang.com/browse/MC-85991 Lingering Harm/heal potions use wrong particle
https://bugs.mojang.com/browse/MC-51113 Model faces are darkened because the system assumes they should be culled
https://bugs.mojang.com/browse/MC-62118 Iron bars model looks worse than it did in 1.7
