Eye Controls pubSub crashes after UI changes tabs

[r3dcrosse]

Steps to reproduce:

1. Run ./gradlew runPinkyJvm and ./gradlew runBrainJvm
2. Go to localhost:8004
3. Click on the tab: Eye Controls
4. Click on the Shows tab
5. Click back to the Eyes Controls tab, then try to control the eye

Expected Result:

Should move the eyes

Actual Result:

UI freezes, some infinite loop sometimes occurs, then the UI crashes