block-behind block changes didn't take effect

[Tobstr02]

Describe the bug

If i set block-behind: enabled to true and change the block, like waiting to GREEN_CONCRETE, it doesn't apply after a reload of bedwars. Also if i restart the server the change didn't take effect. No errors shown in console, also the yaml isn't resetting itself.

Server and plugin version

Spigot version: paper-1.16.5 BedWars version: 0.2.15

Installed plugins on server (can be obtained by /pl)

Worldedit, Worldguard, Multiverse-Core, BedWars

Console log

No errors

Configuration (of config.yml and shop.yml)

sign:
  lines:
  - §c§l[BedWars]
  - '%arena%'
  - '%status%'
  - '%players%'
  block-behind:
    enabled: true
    waiting: GREEN_CONCRETE
    rebuilding: BROWN_STAINED_GLASS
    in-game: BROWN_TERRACOTTA
    game-disabled: RED_TERRACOTTA

If there are problem with only one game, paste here config of this game

[coleccion72]

Hello, the block-behind don´t work? I change 'enabled: true' but it ignore me.

[RedstoneFuture]

Still with BedWars v0.2.20 on PaperMC 1.17.1 #259.