Affects Version/s: Minecraft 14w11b
Fix Version/s: None
Environment:Java 7u51, HD5450 card, Windows 7 Professional and i7 Core
When a silverfish is in a world that's switched to peaceful, the entity still appears clientside, spazzing. I attached a video of this weird behavior, along with a crash report, which seems to not help at all. But, it lists the spazzing endermite as a entity, which might have got the MPServer confused, creating this bug.
Spawn some endermites and silverfish
Switch to peaceful
Now notice how they are still present in their clientside form.