DimensionArgument not suggest worlds created using the API unless rejoin
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- Dominant language
- Java
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Description
Expected behavior
If you add more dimensions/worlds using datapacks or the Paper API that can appear in the suggestion for any dimension argument in commands like execute
Observed/Actual behavior
Only the default worlds or added by datapack show in the suggestion list.
Steps/models to reproduce
- Load a datapack with dimension
- Create a new world using the API
- Use
/execute infor notice the suggestions
Plugin and Datapack List
Plugins only the Paper-Test-Plugin
There are 4 data pack(s) enabled: [vanilla (built-in)], [file/bukkit (world)], [file/the-moon.zip (world)], [paper (built-in)]
Paper version
This server is running Paper version 1.21.11-127-main@bd74bf6 (2026-03-10T02:55:23Z) (Implementing API version 1.21.11-R0.1-SNAPSHOT)
Other
Also affects 26.1.x
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the issue with a datapack dimension and a world created through the Paper API, then check the dimension argument suggestion path used by commands such as /execute in. Done means API-created worlds appear in the suggestions without requiring a rejoin; verify this with the reported reproduction steps.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- api, backend
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 50/100