Monster spawner try to spawn wardens and zoglins when the difficulty is Peaceful.
This is inconsistent with other hostile mobs.
MC-257309
Monster spawner tries to spawn wardens and zoglins when the difficulty is Peaceful
Resolved
Fixed
10
(Unassigned)
Confirmed
Platform
Low
Mob spawning
1.19.2, 22w44a, 1.19.3 Pre-release 2, 1.19.3 Pre-release 3, 1.19.3 Release Candidate 1, ..., 24w18a, 24w21b, 1.21 Pre-Release 2, 1.21 Pre-Release 4, 1.21
24w33a
Retrieved
I can confirm this behavior.