Bukkit

What steps will reproduce the problem?
1. I set my XP per command to 2000 ; Level 34)
2. I depositexp 1000 XP and Check my xp left. Only 177 ; Level 10
3. Then I Withdrawxp 1000 XP and Check again my xp. Now they are at 1171 ; Level 27

What is the expected output? What do you see instead?

Should be the same  Level /xp amount after these Bank aktions but I just lose xp if i use this funktion.

What version of the product are you using?

v.2.4.2

Do you have an error log of what happened?

No error log

Please provide any additional information below.

I tried it per sign and per chat command