The Bug:

The "/spreadplayers" command doesn't spread entities in the specified dimension.

When using the spreadplayers command in combination with execute in <dimension>, for example:

/execute in minecraft:overworld run spreadplayers 0 0 0 1 false @s

the players will be positioned as if they were spread in the given dimension but they will remain in the dimension they were in before.

Steps to Reproduce:

1. Enter the overworld if not in it already.
2. Use the "/spreadplayers" command in an attempt to spread players in the nether dimension by using the command provided below.

   /execute in minecraft:the_nether run spreadplayers 0 0 0 1 false @s

3. Take note of how the players are spread to the specified coordinates but remain in the overworld instead of being teleported to the specified dimension.

Observed Behavior:

Entities are teleported to the said coordinates but remain in the dimension that they were currently in when the command was executed.

Expected Behavior:

Entities would be teleported to the said coordinates in the specified dimension.