New Magnolia Redwood IPA

Hi Houston beer people. I've visited New Magnolia maybe 10 times in the last few years since they opened. For the most part I've enjoyed their beers and their vibe. I really want to like their Redwood IPA – I love me some piney, somewhat bitter West Coast IPAs. But when I tried it recently I tasted some kind of off-flavor. To me it was a little "buttery," which Mr. Google tells me means too much diacetyl. I feel like this could be a great beer without that element. I'm curious if this flavor is intentional, or if maybe it's just this batch, or if I'm just being over-sensitive. On the other hand, I really enjoyed their dry hopped kolsch, which tasted very "clean" to me.