The player's current esteem logo and colour (if recoloured it simply goes back to the default red) disappears on the cape when banked or when dying with it protected but can be fixed by taking it off, and putting it back on. This is a bug.
If two Wicked capes are purchased, the extra essence gained to the Wicked hood is still only 25. Also, two Wicked capes do NOT stack in the bank, so you can't bankspace it. However, if you choose to withdraw more than one Wicked cape from your bank while having two non-stacked Wicked capes in your bank, both will be withdrawn. This might be a bug.
On 5 September, 2012, the wicked cape received a graphical update, along with a new animation.
There used to be a bug where the Wicked cape would give -6 kg to weight even if it wasn't equipped. This has since been fixed.