This issue is also happening for me in 1.21.1. I have tried to place the boat by hand ±180°, and yet it just aligns itself to ±178.X°. The only solution that I found to this issue is to use the /summon command to summon a boat ±180°. But I need to work in survival, so I can't use the solution.
trippyguystuff
This issue is also happening for me in 1.21.1. I have tried to place the boat by hand ±180°, and yet it just aligns itself to ±178.X°. The only solution that I found to this issue is to use the /summon command to summon a boat ±180°. But I need to work in survival, so I can't use the solution.