Random burning by lava & drowning by water

this is soooooooooooooooooooooo annoying the lava and water hitbox level is insanely buggy example i could be in my wooden house on a no firetick world above a ravine with lava that i didnt even know existed i could be minding my own buisness and all of a sudden im set on fire or i could be afk at my automatic fish farm and then drown (actually happened) i was 20 blocks below sea level and the only water in sight was the source block from the fish farm.