/u Command (undo)

[fmxstick]

The /u (undo) command with Voxel does not always work and if you spam it enough it will return "unknown command" and not work any more. There is the option of using "/u 2" which would undo the last 2 actions but that seems to bug out and makes it seem like it has a block change limit (there most likely is).

[Riot]

This functionality in sniper has never been fully implemented; this is not a bug so much as a missing (initially undocumented) feature intended as an emergency parachute. You should not be using voxelsniper in such a way that you are relying on this feature, and the wiki and your admin induction should have included that warning. You ought to avoid using it altogether unless you seriously make a mistake and it's the only way to clean up - but then you should reevaluate whether sniper is the right tool for the job you're doing.

Having said all that, it would be nice to have this functionality implemented, so i'm changing this to an enhancement request. Bastet was the last active maintainer of this plugin i believe, and he should have the code to the current version.