Firefighter0701

Get MCEdit. It helped in my world. You just delete the chunk and recreate it.

That happened to my computer. Now I understand how the chunk error was caused.

I didn't know, that this is a technical issue (In fact the only thing I know about the programme of MC is how to use (five) cheats and a command block). I downloaded MCEdit and after about a hundred tries it finally worked. Thank you so much, you saved my sports centre (Actually I don't like sports, but the architecture of sports centres is so impressive, that I also wanted to build one)!

Thanks!

I did not mean MC-53, but MC-53472. I am confused (and lazy) when working with long numbers, so I used the abbreviation "MC- 5 3 ..."

No, it isn't. In MC-53... the error is fixed by flying into it. But flying into it does not cause any change. I had the MC-53... problem myself many times and tried first to fly into it (the problem now) to fix it. But it did not work. THAT is the problem.

I tried, nothing changed.