I have installed appium 1.3.7 version in mac machine.
I have started appium server for android app in android device.
In android device, the app get installed and opened successfully.
I have clicked the show inspector button and then I can able to see the inspector screen and then my appium inspector get crashed.
Solution
We are using an older version of appium 1.3.1 which is quite stable. Maybe try a reinstall of appium and if that doesn't work go back to an older version.