EW seldom provides an unambiguous answer, there are always little things that do not fit perfectly. PAA is a good example. A case can be made that the stock hit a major low yesterday. But the notoriously imprecise long-term chart still leaves a little leeway to the downside. The short term chart allows for two different counts depending on which top was the real top. If the first one is chosen (in black) this should be it. The RSI, MACD and the 62% retracement support that scenario. The fact that waves 2 and 4 do not alternate is the only fly in the ointment but it does not categorically negate the count! When all is said and done, the difference is only about$2 at the most. The first (lowest) target for a rebound is about $20 and the most probable target is $25. Given that the stock is down almost $30 these targets are not unrealistic or overly optimistic. Take your pick.
PS. Previous blogs sketch the path this stock would take quite some time ago and, if I may say so on behalf of EW, with uncanny precision. Just plug/search the index for PAA.