The fill command doesn't work with light blocks that are on anymore it used to work as:
Fill ~ ~ ~ ~ light block 15.
and it will work fill the whole thing with light blocks and now it would give me a error message no matter the command
MCPE-177895
Light Block Fill command with value doesn't Work anymore
Resolved
Cannot Reproduce
0
The command is now /fill ~ ~ ~ ~ ~ ~ light_block ["block_light_level" = 15]