Closed AP reset bugged

IGN: GunGai
Problem: AP reset used but doesnt count , but AP is lost
Details: I am doing MP + HP wash on this character. I just hit Level 39 and trying to MP wash with the 5 APs i just gained. So This is what i did :

1) Add 1 AP into MP
2)Used AP reset -MP + LUK.
3)Clicked Ok. Everythings seems fine. But realised the quantity of AP reset in my inventory is not reduced. Nothing happened to my MP and LUK. BUT my AP was reduced to 4.
4)Though i was blur so i tried again step 3. Same thing.
5)So i tried using the 3rd AP directly into HP, HP increased. Used AP resets - MP + LUK, AP reset dint reduced, nothing happened to MP and LUK.
6)So i logged off and tried the above again, this time it work, ap resets reduced, MP and Luk did as per reset.

I dont know what happened but seems like i lost 5 AP..