for some reason u sometimes dont get your entire build menu anymore sinds patch, specialy occurs when standing at the "castle angular tower" we placed yesterday and now is misplaced sinds patch, if it happens we are only abel to build "Castle Wall (diagonal)" (i assume ther was a bug arround it and the bug got fixed, dont seem to get tis at a other location on the map)
Edit!
oky we aint the only one's haveing issues whit the building, Masonry and Architecture are bugged and in general everything u need to build on flatten ground is bugged. the work arround is simpel however.
flatten ground BEFORE u want to build something (just flatten 1 tile) rightklik on the flattend tile (u do not need to be standing on it bhut u need to be clikking on the flattend tile) unflattend ground wont work