Thujon

Sometimes my bot only uses auto attack, then on an other mob all attacks. Only having this problem on my warrior. Using the preset 85-90 alliance jadeforrest. Use same setting for 2 others chars to level there. shaman and pala, went fantastic, warrior is buggy.. any one knows what is wrong? why is only uses auto attacks mostly and no skills? I noticed, When he charges on a mob he uses skills then after 5-8 seconds he stops using the skills and keeps auto attacking.. has it to do with timers? I havnt changed anything.