I added JEID to be able to use WorldEdit with Blocks from Enderio and a few other mods.
When I use //set in WorldEdit (Doesnt matter which block, even Minecraft blocks) it removes all the blocks in the selection and doesnt place anything. Now I tried to remove JEID after this issue and WorldEdit continued to not work.
Now, every time I try and remove JEID, I get a "jeid-biome:error 112" and it deletes most of the biome all the way to the void, having to backup the world and re-add jeid.

WorldEdit: worldedit-sponge-api7.1.0-6.1.10-SNAPSHOT-dist
BOP: BiomesOPlenty-1.12.2-7.0.1.2399-universal

After some testing, Minecraft blocks are working but any number above the 4095 limit does not work.

The plugin won't work with JEID, you need the official WorldEdit mod for JEID extensions to work.