When using this command:
/summon Wolf ~ ~ ~ {Sitting:1b}The summoned Wolf will look like it is sitting but will actually start walking around like a normal Wolf.
This is because a wild Wolf isn't suppost to be sitting
Linked issues
is duplicated by 6
MC-82364
Ozelots & Wolfs summoned by a command can't sit
Resolved
MC-118908
Summoning Sitting Parrots
Resolved
MC-171665
Summoning a sitting wolf will make the wolf walk while sitting
Resolved
MC-220571
Wolves that are summoned with the tag {Sitting:1} can walk around while they sit.
Resolved
MC-236255
Sitting Cat with Command
Resolved
1 more links
Erik Broes
If bumping works here then: BUMP