L2Item#checkCondition

[Tryskell]

if (!preCondition.test(activeChar, target, null, null))

Not sure if your conditions work as they should, last null value should be probably "this".

->

if (!preCondition.test(activeChar, target, null, this))

[Tryskell]

Same for Condition :

    public final boolean test(L2Character caster, L2Character target, L2Item item)
    {
        return test(caster, target, null, null);
    }

    public final boolean test(L2Character caster, L2Character target, L2Item item)
    {
        return test(caster, target, null, item);
    }

[ShinichiYao]

Does this cause stackable items sometimes not stacked?

[Adry_85]

Can you please explain better the issue related to this report?