The bug
When you load a crossbow with a rocket the information about the loaded rocket does not show in the crossbow-lore.
Similarly when using an arrow type you cannot tell whether a normal arrow, a spectral or a tipped one is loaded.
MC-137672
Crossbow Item-Lore does not show information about loaded projectile
Resolved
Fixed
8
Confirmed
crossbow, firework, firework_rocket, item-description, lore, spectral_arrow, tipped_arrow
Minecraft 18w43a, Minecraft 18w43b, Minecraft 18w43c, Minecraft 18w44a, Minecraft 18w45a, ..., Minecraft 19w05a, Minecraft 19w06a, Minecraft 19w07a, Minecraft 19w08b, Minecraft 19w09a
Minecraft 19w11a
Retrieved
Made the report a little bit more generic since it applies to the loaded projectile in general. You cannot tell whether a spectral arrow, tipped arrow or normal arrow is loaded either.