Homer T. Nacho Cheese

Duplicate of what? I’d like to upvote whatever it is…. I could not figure out how to search on this site for really, anything. Always zero results.

This example shows 2 blocks reappearing but also has at least one unbroken invisible block to bounce off of.

I happen to also be in the nether using a netherite pickaxe with Efficiency V and am breaking rows of netherrack. These blocks would always break prior to 1.21.70.

I removed the texture pack, set simulation distance down to 4 chunks, render distance to 5 chunks, frame rate to 30 fps, and graphics mode to simple. Disabled bobbing, camera shake, fancy leaves, beautiful skies, smooth lighting. All of this seemed to stop the problem. No lag in block breaking of any kind, but about 8 to 10% of the blocks that would normally break are not breaking at all. If I run hugging a straight wall while breaking two rows of blocks to my right, it is always the far block that incorrectly misses getting broken, and also happens to be that way if I did not toggle all those settings.

That is strip mining… not syrup. Thanks iPhone spell correction and sentence butchering!

Having the same issue. Syrup mining in the nether, it lags and maybe 4 to 20 blocks disappear before you hear them break, the. You get teleported back. Some of the blocks are not actually broken and are invisible. You bounce off their location when trying to move through them. Sometimes they reappear, but mostly after restarting the game. 100 MB save file that varies in size up to 150 when I keep having to save and restart. Happens a few times per minute, so I have to stop playing until it is fixed due to frustration.