Put the summary of the bug you're having here

*What I expected to happen was: Killing the selected entity within the radius of 100,000 blocks outside the command block

*What actually happened was: The redstone clock froze and was unable to restart the clock until a few seconds later. I took off the redstone connecting the clock to the command block and it functions. I attached the redstone dust between the gap and the bug triggered again.

Steps to Reproduce:
1. Create a repeating redstone clock
2. get a command block and place it down on a floor (I put mines down on a stone floor.
3. Write (/kill @e [r=100000,type=ex Silverfish]

4. When the redstone clock is at least one tick per second, connect the clock to the command block with the /kill command written in step 3
5. Perfect, my redstone clock stopped working