Can't place blocks in certain places

So sorry for the re-upload. Got the wrong link
Now its fixed. Thanks [Mod] Galaxy_2Alex for saying it

In some places, you can't place blocks for some reason. heres a video that shows you what happend
https://www.youtube.com/watch?v=gt3--TsPTJ4

How to fix + recreate:

To fix you'll need to reload your world
EDIT: 50½ chance of fixing it
To recreate.... Happends randomly, i don't know how to recreate it XD