There are no explosion sounds or anything, nothing appears in the flight log either. Also, I'm not even throttling up, just right clicking the drive and activating it! Check the screenshots below:
Top Left: The ship just after activating the drive, at this point I have about 4fps and no control.
Top Right: What appears in the console after activation.
Bottom Left: The ship in the VAB, as you can see no parts of it are outside the bubble. The only difference is that the ship in orbit has 2 landers docked to it.
Bottom Right: List of all mods in my GameData folder.
No I'm only activating it, no throttle up at all xd. Im using KSS for power generation, the enormous engine at the back has a built in fusion reactor which generates more than enough electriccharge.
I cheated a test vessel into orbit with just the drive, batteries and a drone core and it seems to activate fine then. So I'm not entirely sure why it's not working with my main ship :c
I hope the info I have provided is helpful.