WorldGuard: disable-lava-damage not working!

I want to prevent my players from dying in lava all the time. But setting the "" to true does not stop it!

What could be wrong? I have the latest version of WorldGuard installed.

I have the following plugins:

• AntiXRay
• BiomeEdit
• ChestShop
• CoreProtect
• Lockette
• MineBackup
• MuteManager
• OpenInv
• PermissionsBukkit
• PluginMetrics
• SimplePrefix
• SimpleSpawn
• TimberMP
• Updater
• VanishPro
• WorldEdit
• WorldGuard

This is in the root config.yml of WorldGuard:

Code:

regions:
    use-scheduler: true
    use-creature-spawn-event: true
    sql:
        use: false
        dsn: jdbc:mysql://localhost/worldguard
        username: worldguard
        password: worldguard
    enable: true
    invincibility-removes-mobs: false
    high-frequency-flags: false
    wand: 334
    max-claim-volume: 30000
    claim-only-inside-existing-regions: false
    max-region-count-per-player:
        default: 7
    explosion-flags-block-entity-damage: true
auto-invincible: false
use-player-move-event: true
security:
    deop-everyone-on-join: false
    block-in-game-op-command: false
host-keys: {}
summary-on-start: true
op-permissions: true
protection:
    item-durability: true
    remove-infinite-stacks: false
    disable-xp-orb-drops: false
    disable-obsidian-generators: false
gameplay:
    block-potions: []
    block-potions-overly-reliably: false
simulation:
    sponge:
        enable: true
        radius: 3
        redstone: false
default:
    pumpkin-scuba: false
    disable-health-regain: false
physics:
    no-physics-gravel: false
    no-physics-sand: false
    vine-like-rope-ladders: false
    allow-portal-anywhere: false
    disable-water-damage-blocks: []
ignition:
    block-tnt: false
    block-tnt-block-damage: false
    block-lighter: false
fire:
    disable-lava-fire-spread: true
    disable-all-fire-spread: true
    disable-fire-spread-blocks: []
    lava-spread-blocks: []
mobs:
    block-creeper-explosions: false
    block-creeper-block-damage: false
    block-wither-explosions: false
    block-wither-block-damage: false
    block-wither-skull-explosions: false
    block-wither-skull-block-damage: false
    block-enderdragon-block-damage: false
    block-enderdragon-portal-creation: false
    block-fireball-explosions: false
    block-fireball-block-damage: false
    anti-wolf-dumbness: false
    disable-enderman-griefing: false
    block-painting-destroy: false
    block-item-frame-destroy: false
    block-plugin-spawning: true
    block-above-ground-slimes: false
    block-other-explosions: false
    block-zombie-door-destruction: false
    block-creature-spawn: []
    allow-tamed-spawns: true
    disable-snowman-trails: false
player-damage:
    disable-fall-damage: false
    disable-lava-damage: true
    disable-fire-damage: false
    disable-lightning-damage: false
    disable-drowning-damage: false
    disable-suffocation-damage: false
    disable-contact-damage: false
    teleport-on-suffocation: true
    disable-void-damage: false
    teleport-on-void-falling: false
    disable-explosion-damage: false
    disable-mob-damage: false
    disable-death-messages: false
chest-protection:
    enable: false
    disable-off-check: false
crops:
    disable-creature-trampling: false
    disable-player-trampling: false
weather:
    prevent-lightning-strike-blocks: []
    disable-lightning-strike-fire: false
    disable-thunderstorm: false
    disable-weather: false
    disable-pig-zombification: false
    disable-powered-creepers: false
    always-raining: false
    always-thundering: false
dynamics:
    disable-mushroom-spread: false
    disable-ice-melting: false
    disable-snow-melting: false
    disable-snow-formation: false
    disable-ice-formation: false
    disable-leaf-decay: false
    disable-grass-growth: false
    disable-mycelium-spread: false
    disable-vine-growth: false
    disable-soil-dehydration: false
    snow-fall-blocks: []
blacklist:
    use-as-whitelist: false
    logging:
        console:
            enable: true
        database:
            enable: false
            dsn: jdbc:mysql://localhost:3306/minecraft
            user: root
            pass: ''
            table: blacklist_events
        file:
            enable: false
            path: worldguard/logs/%Y-%m-%d.log
            open-files: 10
use-player-teleports: true

This is in the config.yml for world in subfolder "worlds/world":

Code:

#
# WorldGuard's world configuration file
#
# This is a world configuration file. Anything placed into here will only
# affect this world. If you don't put anything in this file, then the
# settings will be inherited from the main configuration file.
#
# If you see {} below, that means that there are NO entries in this file.
# Remove the {} and add your own entries.
#
 
player-damage:
    disable-lava-damage: true

Please help!

Forgot to add "disable-lava-damage" between the quotes of the first sentence. :-(

EDIT by Moderator: merged posts, please use the edit button instead of double posting.