Can't run 0.5.3 or any other custom builds. The launcher chooses 0.5.9 instead.

[Chancet]

Title: Can't run 0.5.3 or any other custom builds. The launcher chooses 0.5.9 instead.

Version: 0.5.1

OS: Linux Mint 14

Java Version: OpenJDK Java 7 Runtime

Description of Problem:

This is happening on the new Technic Platform. I have never had this problem before.

I play on a multiplayer server that runs Tekkit Lite 0.5.3, so I need to manually select 0.5.3. When I do so on the Platform, and press save, It doesn't actually save, and goes back to 0.5.9. When I try running anything but the recommended build, it ends up running what it says is "0.5.9", but is actually Hack/Mine mod. I have uninstalled and reinstalled Technic Platform, and I still have no luck.

Lastly, I am not running 0.5.1, but I still have to select it to submit this.

Please help, Thank you.

Error Messages:

Error Log: