Cannot place a block at pos1 and pos2 after running several commands. And the addon breaks also. about worldedit-be

[SIsilicon]

Well, I'd expect the addon to break on 1.17.40 due to some name changes in Gametest, but this is definitely an interesting bug.
Could you please write down some steps that lead to the bug happening? That way I could replicate it and see why it happens.

[Fuzlop]

Simplest way to replicate!

1. Create a default world in 1.17.40
2. Enable experiment features (I enabled every option except caves and cliffs)
3. Load Worldedit and play
4. Use '/tag @s add builder' command
5. Get a wooden axe and the other tools from creative inventory
6. Select any size of cuboid space
7. Set it with any block. Let's say grass block
8. Drop axe for deselction
9. Break grass blocks at pos1 and pos2
10. Now you can't put any full block at the coordinate pos1 and pos2 were located

[SIsilicon]

I tried what you did, and the issue seems to be fixed in master now.
You can test yourself by putting the BP and RP folders in their respective folders in com.mojang.

[SIsilicon]

Closing due to lack of support