"mouseover" as targetUnit for the function FindBuff() should have been added with SM 3.17. I am using SM 3.18 with Turtle WoW
Problem: mouseover is not working ..
Example:
/run if not FindBuff("Rejuvenation", "mouseover") then CastSpellByName("Rejuvenation") end
Edit: It seems "player" as targetUnit is also not working anymore with the current Turtle WoW version , it is just using "standard" where you have to click your target first.