After seeing this I went to first try to reproduce this, and then I started playing around with the wall blocks a bit more and found some… bugs? inconsistencies? Not sure how to categorize them, but I made a rough video:
I tinkered around a bit more afterward in the same area, so there are some extras around if you want to have a gander at those as well.
There’s also a problem with regular blocks where i’ll sometimes stick to the sides of the stone chunks if I get too close to the corner while mining down
I’m kind of proud what I started here xD
I’d also really like to know how these bugs were created.
Because if they also exist with older blocks like treetrunks, there might be a fundamental error in the code that causes all of this bugs at the same time?