Bug when putting up more than 25,000 TNT

It started when I was playing Minecraft: Education Edition running version 1.14.31 and I put up Code Builder, then I put 1000 TNT and then after that the remnants is see-trough 

Steps to Reproduce: 

1: Go to this following seed: -1120006019

2: /tp @s 5992, 75, 2234

3: Blow up 20,000 TNT!!Unable to render embedded object: File ( And that bug will show up) not found.