I really dont know the solution. i sent the first one back and got a replacement which after one wear had the same problem. Sending this one back is not an option as i can see the same thing happening on the third.
ive posted about this problem with no real help from anyone on the forum.
Im hoping when taka gets back from his break he will be able to help.
If the problem does happen on yours then keep me posted on what course of action you take and i will do same.