MCreator issue tracker has been migrated to GitHub.
Existing tickets have been migrated to GitHub. Please open new tickets on the GitHub tracker instead. If you do not have a GitHub account, all feature requests and bug reports from forums are still considered and checked by the maintainers.
This is true because schematics are only designed to be spawned in the overworld. In order to get schematics to spawn in custom dimension, add them to the list of schematics in dimension creator.