grinder not grinding the selected blocks

Nobody shared this feedback 11 months ago

When i point at a block, the red lines go around it, and so then i try to grind it, yet it grinds different blocks. Blocks behind it, blocks to the left of it, blocks to the right of it... who the fuck knows.... its not working was, i never had this problem before, now it happens every fucking time.... i aim at a block, the red lines are around the block, but some other block gets grinded. It's fucking pissing me off.