This doesn't affect the host. I play on a multiplayer world on LAN, and occasionally when I place blocks the blocks don't exist on the other player's screens and technically don't exist, as if I place a block the amount of that block in my inventory remains the same, meaning that I never removed that block from my inventory by any means. Whenever I mine the non-existent block it doesn't drop. however, I still see the block and can interact with it.
In the video, you can see that I place the blocks but the amount in my inventory are the same, and when I mine them they don't drop. Also, my friend can walk through them because they don't exist on his screen.
The no-existent block will disappear if you rejoin the game, but the glitch does not. If I try to rejoin to fix the glitch, I will continue to place non-existent blocks. Restarting minecraft isn't very fun to do, so I hope my complaint will help solve this glitch. Thanks for reading my feedback, and have a great day!
Thank you for your report!
We're actually already tracking this issue at MCPE-65522, so I resolved and linked 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.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
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