My Minecraft Server's were deleted from the multiplayer section on restart.
Related issues
Comments

Is this still a concern in the latest Minecraft version 14w03b? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.

Duplicate of MC-39583?
To remake this bug just add a handful of servers then turn minecraft on the next day.
PS. My Minecraft launcher was getting a update before this happened.