Problem with invaders movement

[Drcooper]

I have a space invaders knock off I'm working on and hit a small snag.
I have several different invaders all part of "Group.bad".
When a bullet hits the invader, the invader is destroyed.
The invader movement is set to 50, with automatic increase as invaders are destroyed.

The problem is, when I get down to 2 invaders, the last 2 go VERY fast, and then when I kill one of them, and only one invader is left, the very last remaining invader slows down to his original start of frame slow speed (instead of going even faster).
What am I doing wrong here?

Thanks

[Tisnart]

Are you using the Invaders Movement?
(sounds like you are)

Maybe it's something in your events that is causing this, perhaps with your "Group.bad" . Hard to tell without seeing code.
Can you post an example of your problem?

[Drcooper]

I found a solution that will circumvent the problem - thanks

[Jyrkface]

Could you share your solution so this thread can be useful to others?