Experimental version #2648, Windows Console version, running on Windows Vista. Exactly what it says on the tin. When I try to construct wooden fence gates, the result is an ordinary, non-gate, picket fence tile. Constructing wooden fences by way of build fence posts -> build wood fence also works, but nothing seems to make wooden gates. (I could build a metal fence instead, and did at one point, but gave up on that because it turned out to be completely ineffectual at saving my fields from my misbehaviour behind the wheel, so I figured I may as well just settle for a wooden fence.)
Weird but hopefully a straightforward fix–betting a reference got mixed up somewhere. Thanks for reporting.
No, thank you. In the meantime I finagled in some metal gates, so no rush.