What time of day is it on that world? All worlds crash or just that one?
The "stuff blows up when I teleport" means that you built on where your character spawns - at least that is what it used to do to me as far back as early PC Terraria. Unless I misunderstand the issue. Have you tried using a bed to change your spawn point yet to see if it occurs even still?
It's daytime, raining. Crashes every time I jump in my house. I will let night fall and see if it changes anything.
Only my world with my house crashes. And it only crashes if I jump or fly in my house or right outside it.
I visited my son's world and was able to jump around his house.
I am using a bed as my spawn point. I just clicked on it again and reset my spawn point just to make sure it was set. I walked out of my house, hit my mirror, and again landed at my bed but with broken wooden floor and all my banners fell. I have not altered my spawn point, bed, or the decor around my bed in months. So idk why all of a sudden this is happening with the update.
I can post a video if it's helpful.
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Just went back at nighttime and I still can't jump or fly in my house. Time of day does not matter.