The command to summon a Ravager Jockey (Ravager with a Pillager rider) does not work, returning a syntax error.
How to recreate:
Copy and paste this command:
/summonravager ~ ~ ~ minecraft:spawn_with_pillager_riderObserve the syntax error, and that no Ravager Jockey has spawned.
(This command is taken directly from the Minecraft Wiki, and if it is inaccurate, needs to be updated).
You need to add two more tildes.
/summon ravager ~ ~ ~ ~ ~ minecraft:spawn_with_pillager_riderNote that the Minecraft Wiki is unofficial and maintained by the community. If you see anything that needs updating, you can update it yourself or inform the wiki members.