Loss of text encoding

[seferlian]

import net.minecraft.init.MobEffects
import net.minecraft.entity.player.EntityPlayer
import net.minecraft.item.ItemStack
import com.hbm.hazard.modifier.HazardModifier
import net.minecraft.util.text.TextFormatting
import net.minecraft.client.resources.I18n

mods.hbm.hazards.register("egg", {
    unstable(1.0, (living, stack, level) -> {
        if (living.isPotionActive(MobEffects.POISON)) {
            living.removePotionEffect(MobEffects.POISON)
            stack.setCount(stack.getCount() - 1)
        }
    }, (entityItem, level) -> { }, (EntityPlayer player, List list, double level, ItemStack stack, List<HazardModifier> modifiers) -> {
        list.add("§2§l[Удаляет отравление]")
    })
})

Problem with list.add("§2§l[Удаляет отравление]"), in minecraft this text turn in:

[WaitingIdly]

testing with this script:

eventManager.listen { net.minecraftforge.event.entity.player.ItemTooltipEvent it ->
    it.getToolTip() << '§2§l[Удаляет отравление]'
}

makes every item have the correct tooltip text:

are you sure your file is encoded properly? it should be in UTF-8.

while this is unlikely to solve your issue, i would also suggest using lang keys and translation files instead of the raw text

[seferlian]

Yes, the file is encoded in UTF-8, but for some reason my problem still persists with new script. Although all mods have normal encoding.

[seferlian]

it should be in UTF-8.

Saved the file in ANSI encoding solved the problem.
But this is only a partial solution to the problem, as I cannot use Unicode characters here.