Affects Version/s: 18.104.22.168 Beta, 22.214.171.124 Beta, 126.96.36.199 Beta, 188.8.131.52 Beta, 184.108.40.206 Beta, 220.127.116.11 Beta, 18.104.22.168 Beta, 22.214.171.124 Beta, 126.96.36.199 Beta, 188.8.131.52 Beta, 184.108.40.206 Beta, 220.127.116.11 Beta, 18.104.22.168 Beta, 22.214.171.124 Beta, 126.96.36.199 Beta, 188.8.131.52 Beta, 184.108.40.206 Beta, 220.127.116.11 Beta, 18.104.22.168 Beta, 22.214.171.124 Beta, 126.96.36.199 Beta, 188.8.131.52 Beta, 184.108.40.206 Beta, 1.14.20 Hotfix, 220.127.116.11 Beta, 18.104.22.168 Beta, 22.214.171.124 Beta, 126.96.36.199 Beta, 188.8.131.52 Beta, 184.108.40.206 Beta, 1.13.1, 220.127.116.11 Beta, 1.14.1 Hotfix, 18.104.22.168 Beta, 1.6.0, 1.12.0, 1.13.0, 22.214.171.124 Beta, 1.14.0, 1.14.30 Hotfix, 1.14.60 Hotfix, 1.16.0, 1.16.1, 1.16.10
Fix Version/s: None
Platform:Windows 10 - PC
If your crosshair doesn't see anything in its line of sight when you look down to the space beside the block you're standing on (if you look at where the new block will be placed), it will place a block adjacent to the block you're standing on, but not if the block has snow (or other such blocks) on it, because it considers the snow to be the block you're standing on and wants to place a block to the side of the snow layer, but not even that is possible in the case of a snow layer (it wants to replace the snow layer if you right click with a block while looking at a snow layer).
It should not consider snow to be a valid block in this procedure, because this feature is entirely for the sake of convenience, and it's inconvenient and illogical to not be able to build using this feature if you happen to live in a snow biome and snow has fallen or is falling on the blocks you are standing on. Snow is an inconsequential "atmospheric" block you can't prevent, it shouldn't get in the way of the player fulfilling their intentional building plans, such as due to a randomized snow placement algorithm during a snowstorm, or time in the case of returning to build after it has snowed.
If you're not convinced it's a bug, you can't place a block on the side of a snow layer, it wants to replace the snow layer with the new block (unlike with slabs, rails, etc., but alike grass, ferns?, etc.), but obviously it is unable to place it INside the snow layer when you are inside it already, so it should fallback to placing the new block to the side of the block below, the one you are, for all reasonable sakes, actually standing on.
Exact same bug report as I made before but got "resolved" as being a "duplicate": https://bugs.mojang.com/browse/MCPE-36854?filter=-2
(Which is not even remotely a duplicate of:
as I wrote in the comments of my previous report:
"No, it is NOT a duplicate of that, this is an actual bug. That one had to do with sneaking and still being ABLE to (which is not a bug), this is about NOT being able to when the block has snow (or other pressure plates or whatever, but in that case it's not such a bother, because snow appears on blocks whether you want it to, yet, or not) above it."