While I place a trapdoor on a wall It appears to be open and when I place it with an orientation and break the block directly attached to it the trapdoors still exist and we can break blocks behind the trapdoor through it and the crosshair still negative while playing with a resource pack.
Please put only one bug report in each ticket. It is very difficult to keep track of bugs when they are not in their own tickets, and it is easier for you to make multiple tickets than for the mods to separate them.
And please use the search function in the future as all of the issues are reported multiple times.