The Bug:
Walls can occasionally turn invisible after upgrading old worlds.
Please note that this issue cannot be seen with fences, glass panes, or iron bars.
Steps to Reproduce:
Launch an instance of 1.11.2.
Build the setup as shown in the attachment below.
Exit the world and upgrade it into the latest snapshot.
Look at the walls previously were.
Take note as to whether or not walls can occasionally turn invisible after upgrading old worlds.
Observed Behavior:
Walls can occasionally turn invisible after upgrading old worlds.
Expected Behavior:
Walls would not be able to occasionally turn invisible after upgrading old worlds.
Linked issues
Attachments
Comments 8
Thanks, I've amended this ticket. Please also note that a block update must occur next to the invisible walls in order for them to reappear. Whilst they're invisible, you cannot see the block outlines of them and you can also walk through them.
Relates to MC-239857.
They appear again because the walls are updated and their block states are changed to normal and intentional ones, making it visible.
Some block state combinations for walls cant be obtained normally and they werent made to have proper models and hitboxes.
In this case the wall is just invisible and has no hitbox.
Confirmed in non flatworld. Blocks render invisible until they are updated.
Strangely, I was able to setblock a cobblestone wall on a cobblestone wall. When trying to run the command again after they were rendered in, it gave me the "Could not set the block" error I would have expected when I ran setblock the first time.
Dupe of MC-239856
The walls aren't actually deleted, their block states convert so everything is
falseresulting in the wall being invisible.