When standing on land and breaking a block submerged in water, the block-breaking particles do not show up. The block just disappears or (in survival mode) drops.
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Do you use fast, fancy, or fabulous graphics?

i used fast in the video but still happens on fancy
in fabulous graphics it doesn't happen but I have a bad computer, so if i use fabulous it just makes my game lag
Since you mentioned that you were using fast/fancy graphic settings, this ticket is a duplicate ofย MC-188529, which was later resolved as "Won't Fix". You can use the "Fabulous!" graphic setting to fix this issue.

Thank you for your report!
We're tracking this issue as MC-188529, so this ticket is being resolved and linked as a duplicate.
That ticket has already been resolved as Won't Fix, which means this is considered a bug but won't be fixed. The description of that ticket or the comments might explain the rationale. Please do not leave a comment on the linked ticket.
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wait actually fabulous doesn't lag its all fine
thx