Description
Upgrading a world with "update 1_21" data pack on in 1.20.4 to either 1.20.6 or 24w18a causes all Trial Spawners not working in neither the two versions.
Steps to Reproduce
Create a world in 1.20.4 with "update 1_21" datapack on
Place a Trial Spawner and put a mob inside (Spawn Eggs, cmds, etc.)
Exit; open the game with either 1.20.6 or 24w18a
Select the world and click "Edit," then "Optimize World"
Open the world with either versions above and set your Gamemode either Adventure or Survival
(O_o) Trial Spawners spawn mobs as expected.
(×) Trial Spawners do not spawn mobs.
Attachments
Comments 7
I would also like to add, this is specifically outlined in the warning message when enabling experimental datapacks:
[media]
Resolving as invalid due to the two linked comments. These are experimental features for a reason and full compatability when upgrading a release to an experimental snapshot should not be guaranteed.
Considering the trial spawner is specifically marked as "experimental" , this may be expected. Specifically these comments may be relevant:
https://bugs.mojang.com/browse/MC-241942?focusedId=1113597&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-1113597
https://bugs.mojang.com/browse/MC-242629?focusedId=1114541&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-1114541