The bug is about carpets - as said in MinecraftWiki, they can be placed only on full blocks, not half blocks and not air. I can't place them in air, but I can place them on slabs and even on other carpets (screenshot attached).
Related issues
Attachments
Comments
migrated
[media]
migrated
that is supposed to hapen it hapens to me and i saw a video of sethbling an he said its not a bug its meant to do that