Runecrafting experience in Dungeoneering glitch

Upon release of the Dungeoneering skill, there was a glitch with the equations used to calculate Runecrafting experience inside the dungeons of Daemonheim. The experience was suppposed to be exponentially reduced, but ended up becoming exponentially increased. As a result, players were able to gain hundreds of thousands of Runecrafting experience in a short time.

Jagex responded with a quick fix and rolled the game back, sparking criticism from players who weren't able to even finish their first dungeon. Several players were banned for abusing this bug.