• Deadchest
• 4.8.2
• 1.18.1
• Paper

My players report that the deadchest is not generated more often.
Most of the time this happens in the Nether (not on any level).
Latest version is on, deadchest folder has been removed.

Hello, I made some try today on 4.9.0, no way to reproduce.

Did you tried with this version or newer ?