If i write a fill command the game starts crashing by the second coordinate.
Fisrt the cursor appear and then next to the cursor is appearing the little blue loading circle.
After a few seconds the startup screen appears and then i see my desktop screen.
Thank you for your report!
We're actually already tracking this issue at MCPE-102908, so I will resolve and link this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
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