summon minecraft:minecart X Y Z not recognized

Using the summon minecraft:minecart X Y Z command returns unknown command, and affects all related "minecart:minecart" commands and types.

Using summon minecart X Y Z works correctly, and all other entities can still use summon minecraft: X Y Z

 

Edit: I'm a nitwit. It was a behavior pack causing the issue. This can be deleted!