On my first character i like skilled all my skills as usuall, my light attack weapons skill was lvl 5 (was a noob char

) and it cost like 30k to go over to 6 (not that this is much...).
The weird thing started after that - suddenly looked at it and it costed me 3k to get to lvl 6 !!!
Also same thing was with traps - locating and opening...
The locating traps costed me 1XXk and the Opening was 2XXk and suddenly they went down to 50k and 100k... someone knows why and when does this weird things happend ? (no.... it wasn't intelegience coss i didn't lvl it at that time...

).