Starting a couple of weeks ago my snekka cannot use 90% of jumps. No matter what angle I take the hourglass counts down and I get the "no space at destination" message. I can exit the boat and use the jump myself with no problems. At one point I built a new jump across a narrow isthmus (about eight tiles), there was plenty of clear space on both sides, I could use the jump on foot but not on the snekka, "no space at destination".
The first time I encountered this was a jump I'd been using for months, I tried everything i could think of, including chopping all trees and clearing all stumps for a clear path from post to post. I chopped down the last post and moved it to several different locations, even one on a small peninsula (so clear water around three sides), still no luck. There is one jump near my farm that still works, and found another one yesterday that worked, but all others .... "no space at destination".
What would cause this?