Multiplayer Servers Deleting After I log off from a server occasionally

Put the summary of the bug you're having here
I just logged off from a minecraft server and all of the servers under the multiplayer list are gone and I must re-enter them. This has happened a total of 3 times, once yesterday (August 27) twice today (August 28)
What I expected to happen was...:
Describe what you thought should happen here
I thought what should happen is that when i log off from a server all that happens is I log off
What actually happened was...:
Describe what happened here
every once in a while (randomly) when I log off from a server, all of my server on my list of servers are gone.

Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. I finish playing on a minecraft server
3. And under my multiplayer servers list all of the servers are gone and I must re-enter all of them.