Preface:
Ran across this bug while creating a 1.13.2 adventure map.
The command that fails:
/clear @a #minecraft:impermeable
Error:
Unknown item tag 'minecraft:impermeable'
Reason this is a bug:
The item tag is known and functions properly in other commands such as /fill
/fill x1 y1 z1 x2 y2 z2 minecraft:air replace #minecraft:impermeable
In addition, other item tags work with the /clear command
/clear @a #minecraft:wool
Comments 3
Not all block tags have an item equivalent. You are free to create the tag yourself though in a data pack
First bug report*