Never leveled while split, but due to the way SS works I could see this happening. If this is real I'm kinda upset I didn't get to abuse it. Did your health/wrath rise? --- Oni Seraph: Be humble on your path. You have nothing to prove to anyone, not even yourself. Trust yourself, always.
I'm not sure, I didn't check the stats. But yeah it happens if you level up whilst soul split, I've done it a few times now and the skill points do keep wracking up but if you respec they go back to normal. I'm just about to level up so I could test the stats but I think I'm just before the last boss at lv 20 and enemies don't seem to be giving me any exp anymore.