1.21 CreatureSpawnEvent.SpawnReason.TRIAL_SPAWNER doesn't seem to work

[mike3132]

Expected behavior

I expect it to print the spawn reason as TRIAL_SPAWNER but it instead prints as DEFAULT
I am trying to modify creatures spawned only from trail spawners using CreatureSpawnEvent.SpawnReason.TRIAL_SPAWNER

Observed/Actual behavior

If you try and use the event CreatureSpawnEvent.SpawnReason.TRIAL_SPAWNER in order to modify and detect mobs from trial spawners it doesn't work
https://youtu.be/bMdTV3X8DTw

Steps/models to reproduce

You can see the code in this video https://youtu.be/bMdTV3X8DTw

Plugin and Datapack List

https://prnt.sc/Vxx0HmcdJqOM

Paper version

https://prnt.sc/Kyw29fNx3JCn

Other

No response

[lynxplay]

TrialSpawner needs to setup spawnedViaMobSpawner and spawnReason after recuseive load.