So, after confirming in the forums that this ability uses spot instead of search I rebuilt my cleric with 5 rogue levels as an acrobat to make her viable in combat and have evasion. Not having a ton of skill pts as a first life build with mostly cleric levels I dumped search (have 4 ranks from 1st level) in favor of spot since it was confirmed that nothing is hidden uses spot and I planned to take it... making search a wasted skill.
So I took nothing is hidden, and I have a standing 46 spot at level 17... and I can't even find traps in a level 4 quest. Since it wasn't working for me at all in higher levels I tried Proof is in the Poison, my spot was working (got the you sense danger messages) and my search was working if used manually, so the trap DCs were low, but I was not auto detecting them at all. Or to put it another way, this ability does not function at all for me.
Now it's possible it was fixed to use search instead, and I was failing even low level checks since it's dumped for me and the check is -4 (as previously stated I succeeded on a regular search check.
Can anyone confirm if this was corrected to use search if if you've had similar problems?