Sadly... Not yet. My copy is on my old computer and that is currently lagging beyond use, and I am not a good programmer or anything so I'm not sure how to do so. If I get the chance to, I'll leave it here.
This issue exists when I was using 1.16.100, so it may have been fixed in the hotfix. The world was perfectly normal, with no prior templates or anything. Maybe you should try reproducing this on the Windows 10 Edition, because again it may not work on the iOS version. If you need help just ask me.
Hi there, I may have not explained it properly. To explain it again, when I was playing on a world I found that the bottom of the world (where the bedrock stopped generating) was Y=-2, or two blocks below 0. Not only that, you can place blocks below level 0 to -2, which tells me that for some reason the world limit on the Y axis going downwards is two blocks lower than they are supposed to be. I tested this in the Nether and End and the problem also exists there. To reproduce the issue, here is what to do:
Open up a Minecraft world on 1.16.100 and go down to Y=-2 (X/Z doesn't matter) in Nether, Overworld or End.
You should see that the bedrock layer is just above you, and if you go to Y=0, you can see that there is a bedrock layer beneath.
Try to place blocks beneath Y=0. This better works in the End. You should not be able to place the blocks underneath that level, but you can and it works with every block.
I hope my explanation was useful. If you need a cleaner explanation, I can give you a clip of me doing that.
Thanks
Mr Kirby
Hi there, a possible theory may be that since the height limit at 256, and considering that extended pistons take up two blocks, game mechanics may somehow refuse to allow the piston to extend up to 256. I'm not an experienced coder, but that is my best explanation. The bit where you said blocks that pistons can break allow the pistons to extend may be caused by some sophisticated mechanics.
Thank you. But sadly, the computer my world is on is currently in a state where nobody can use it that well (it freezes all the time, takes half an hour to even do anything, and it has a horrible CPU). Minecraft probably can't run on there any more so unless you know a way to transport worlds over to other computers, I can't access the world anymore so sadly this issue will have to wait until someone else reports the problem or it is looked into. I appreciate the help, but I'm afraid my worlds are on a slow, unusable laptop so I don't have control over this anymore.