MCA Selector ‘Open World’ Does Nothing? Check the Saves Path

ByAdmin

You click File → Open World in MCA Selector and… nothing. No file dialog, no error, no freeze — the menu item simply does nothing. This is issue #466 on the official tracker, and unusually for a silent failure, its cause is known and the fix takes a minute.

Why it happens

MCA Selector remembers a saves directory in its Settings — the folder the Open World dialog starts in. If that folder no longer exists (you moved your Minecraft installation, deleted the folder, changed drives, or the setting was carried over from another machine), the dialog has nowhere to open and silently gives up instead of showing an error.

Fix it step by step

  1. Open MCA Selector’s Settings.
  2. Find the saves directory setting and check the path it points to.
  3. Open that exact path in your file manager. If the folder is not there, you have found the problem.
  4. Set the saves directory to a folder that actually exists — normally the saves folder inside your .minecraft directory, the one that directly contains your world folders.
  5. Save the settings and try File → Open World again. The dialog should now appear, starting in the folder you just set.

Related symptoms this also explains

  • The dialog opens but starts in a strange, empty folder — same setting, same fix.
  • Your worlds “disappeared” from the dialog after reinstalling Minecraft or moving to a new PC — the setting (or the installation) now points somewhere else; your saves themselves are wherever the game actually stores them.
  • Once the dialog works, selecting the folder can still fail with “No Dimensions found” if you pick the wrong level — that is a separate issue with its own guide: No Dimensions Found causes and fixes.

If it still does not work

Issue #466 is still open upstream, so treat the steps above as the community-known workaround rather than an official patch. If your saves path definitely exists and Open World still does nothing on the current version (2.9), launch the tool from a terminal (java -jar mcaselector-2.9.jar), click Open World, and add whatever the terminal prints to issue #466 — silent failures only get fixed when someone captures what the program was trying to do.

Get the Current Version First

Several of the problems in this guide disappear on the current release. MCA Selector 2.9 is free and open source — get the Windows installer, the cross-platform .jar, the macOS .dmg or the Linux .deb/.rpm from the MCA Selector download page, where every button points at the official GitHub release files with their SHA-256 checksums.

More troubleshooting

This page is part of our MCA Selector troubleshooting hub, which groups every known launch, loading and editing problem by symptom.

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