How to Fix WorldEdit Errors
WorldEdit stops an edit with Max blocks changed in an operation reached when a change limit is set. How //limit and the config limits work.
Quick Fix
Run //limit with a higher number, for example //limit 500000. Going above the server's maximum needs the worldedit.limit.unrestricted permission.
Error Message
Max blocks changed in an operation reached (10000).How to Fix
Run //limit with the number of blocks you need. //limit on its own goes back to the default.
Admins on Paper, Spigot or Bukkit: raise limits.max-blocks-changed.default and limits.max-blocks-changed.maximum in WorldEdit's config.yml.
Admins on Fabric or NeoForge: change default-max-changed-blocks and max-changed-blocks in config/worldedit/worldedit.properties.
Give trusted builders the worldedit.limit.unrestricted permission so a server maximum doesn't hold them back.
On FastAsyncWorldEdit, raise max-changes in the default limits group of its config.yml, or give players a larger group through the fawe.limit.<name> permission.
Split very large edits into smaller selections, and clear your history with //clearhistory after big jobs.
Common Causes
- Your change limit is lower than the edit. WorldEdit then stops with Max blocks changed in an operation reached, followed by the limit.
- The server sets a default limit. WorldEdit itself ships without one (-1 means no limit), so the number comes from the server's config or from an earlier //limit.
- You asked for more than the server allows. //limit then answers Your maximum allowable limit is, followed by that maximum.
- The server runs FastAsyncWorldEdit, which has its own limits. Its default group allows 50,000,000 block changes and cancels bigger edits with Too many blocks changed.
- The edit is so large that the server runs low on memory. WorldEdit keeps what each edit changed so //undo can reverse it, up to 15 edits per player by default.
Diagnostic Steps
- Read the number in the error message.
- Run //limit with a higher number.
- Ask an admin if you reach the server maximum.
- Split the edit if the server runs low on memory.
FAQ
Is FAWE better than WorldEdit?
FastAsyncWorldEdit is a separate fork made for very large edits on Paper and Spigot. It has its own settings and limits, so advice for WorldEdit doesn't always apply to it.
What does //limit -1 do?
It removes the change limit for your WorldEdit session. //limit with no number goes back to the server's default.
Why does WorldEdit use so much memory?
It stores what every edit changed so //undo can reverse it, and keeps up to 15 edits per player by default. //clearhistory throws that history away.
