To unload a custom map in JJS, the usual method is to go back into the workshop/custom map menu and disable or remove the active map preset , rather than looking for a separate “unload” button. A recent tutorial on JJS custom map presets says custom maps are handled through the workshop flow, and the same place you load them is where you would switch them off or replace them.

Quick steps

  1. Open JJS in your private server.
  2. Press the menu shortcut used for Workshop/custom content.
  3. Find the active custom map preset.
  4. Turn it off, unselect it, or switch to the default map.
  5. Rejoin the server if the map does not clear immediately.

What people usually mean

In JJS, “unload” often just means stop using that preset. The game content shown in the tutorial points to a load/replace workflow for custom maps and movesets, not a separate deactivation system. If the map stays visible after disabling it, rejoining is the safest fallback.

Troubleshooting

  • If the map was loaded from a private server workshop page, remove it there first.
  • If the map is tied to a saved preset, overwrite that preset with the default map.
  • If nothing changes, leave and re-enter the server so the client refreshes.

Forum-style takeaway

“Unload” in JJS usually means “switch away from the custom map,” not “delete it permanently.”

If you want, I can also give you a shorter step-by-step version specifically for PC keys or mobile.