As can be seen below, I've somehow managed to begin construction of a fishery on land, in the middle of a field nowhere near a beach. It's still only in construction and at the start of the turn it's supposed to complete construction my game crashes (this is definitely confirmed, I've tested it a good number of times), so I'm thinking the game is recognizing that something is definitely wrong with the placement.
It's also worth noting here that there is a section of beach suitable for construction of said fishery just below my settlement to the left, and yet the option to build said fishery hasn't become available in that settlement. Both settlements are of the same level so I have no idea what's going on there. The image below reveals all. I'm going to keep trying to get the game to let me build fisheries on land in different places using different teams.