The embedded code's window does not appear, disabling me from reaching my own code. Code still runs properly, though.
How it happened:
I wanted to share the same xLua object through 3 frames. I copied the xLua object I had with written code to all 3 frames, and it worked like a charm.
However I quickly discovered that an edit in one object didn't carry over to the remaining in the different frames. I tracked down the xLua object that contained the code which was being used (turns out to be the last created of the objects).
Then I emptied the other objects so I wouldn't accidentally spend hours writing in the wrong object.
After restarting MMF2, the window now appears as seen in the screenshot above. I'm unable to reach the code.
Mecha the Slag