Possible Fixes

Yes

Modpack Version

1.17a

What happened?

I am currently playing on a server running version 1.17a, where I have encountered an issue: the Ender Dragon does not spawn. The bells in the End continue to "ring" indefinitely.

The world was originally generated in version 1.15, and the Ender Dragon spawned as expected in that version.

To resolve the issue, I attempted to reset the End dimension by deleting the "DIM1" folder. However, this resulted in the central structure also disappearing. I further tested this behavior in a single-player game, both with a world generated in version 1.16 and a newly created world in version 1.17a.

Based on these tests, it appears the issue affects worlds generated prior to version 1.17a.

latest.log

No response

Developer reports

No response