failure to render block that was set using a command block and the /setblock command, and the game crashed

Put the summary of the bug you're having here

What I expected to happen was...:
The command to summon the block (personalized spawner)

What actually happened was...:
Instantaneous game crash, which happened multiple times.

Steps to Reproduce:
1. Place command block
2. Create personalized spawner using /setblock command
3. Summon spawner