In any world, or every world, once I place a certain amount of scaffolding blocks (commonly occurs near 18+ scaffolding blocks), the screen will lag for a bit, then it will flash white. The, all of the buttons are gone. Even the menu buttons. When I manage to hit the invisible menu button, all of the resume game and settings and save and quit and such buttons are also invisible. I have managed to hit the settings buttons, to see if it was with my HUD, but all of those settings are invisible, too. There were some pandas in the world, but after the white flash and invisible buttons,  the only noise they make is walking noises, and all I see is their shadows. No cute panda. When I move, there are lines in my screen that trace blocks of different elevation, and I can see all the way to the void through these strange cracks that overlap blocks. When I move around too much from the location I was in when the white flash occured or when I look up and down really fast, the screen turns baby blue and kicks me out of minecraft. Other worlds without scaffolding blocks are fine, but when I restart Minecraft, the world is corrupted and I lose my HUD and everything all over again. I have tried restarting my kindle, but it is still corrupted. I tried holding the power button for 30 minutes, and restarted the kindle, and it was still corrupted. I have around 7 worlds that are in this condition. I would like to have a solution that fixes the corrupt (Or whatever happened to them, I just call them corrupt because they are creepy and disturbing with all of the ugly glitches that literally turn creepers clear.) Worlds and allows me to use unlimited scaffolding blocks. This is also why I can't get the achievement that requires me to build to the height limit with scaffolding blocks. Unfortunately I can not take a screen shot because if I pull down the kindle menu to take a screen shot, it will kick me out of minecraft. I also can't take a good photo with my phone because the screen of the kindle will appear blue and will blind out the contents of the screen to my phone.