The game instantly crashes on (in my opinion) correct Entity NBT data.
will, as expected, say "Invalid Entity"
however if a NBT-format is used (for example:
), Minecraft will crash wether a Creeper exists or not. This happens with every NBT-Format within the quotation-marks. A Null Pointer exception will be thrown.
This is not the only case though... All commands with some kind of NBT-Format-Text in quotation-marks will cause Minecraft to crash
(Additional Crash information below)