The enemy's hitbox is moving because it's a platform object and you haven't disabled it. The droid isn't lining up with the droidbox because you haven't told it to. Those are commands that are in your droid's ai sheet, which you haven't included... so it makes sense that they wouldn't follow them.
And yeah, when I include your event sheet I get the crash too. Honestly, I have no idea why it's crashing. It's doing the exact same thing as before. It really shouldn't be crashing, but it is...
I get this error when I debug it:
Action 1 of event 2 is the action to spawn a droidbox. (It says instance 2 of 2 because I made a copy of droidspaw.) You're going to have to report this as a bug, I guess. I don't know what's up.