Weird Skill bug

[Timbo 22]

Has anyone seen this glitch where during level up the game randomly gives you phantom ranks in skills you don't actually have? Then after leveling they disappear? It's happening in my mod and I can't figure out if it's a known issue or something I did?

[DarthParametric 3,785]

The only way that sounds feasible is if you're buffing a skill via script. For example:

ApplyEffectToObject(DURATION_TYPE_TEMPORARY, EffectSkillIncrease(SKILL_xxxxx, nBuffAmt), oTarget, fDuration);