Antistuck spell

[Goofy94]

Good morning all,

I think this is my first post ever in a forum and I hope you can help me. I'm trying to revive or re-edit an old TD map with a couple of friends.

My waypoints, etc. are currently working quite well, but there are some situations in which the creeps just stop. With the ground units it seems like there is a problem that two units are stuck together, as soon as I kill one unit of them, the other one moves again. I can't exactly analyze the issue for the air units, they just seem to stop at a waypoint from time to time. I remember observing this problem in other TDs and in some of them there was an "antistuck" spell you could cast with your builder. I would like to integrate this spell into my TD. Can someone tell me I have to do, what exactly does the spell have to do or which "standard" spell can I edit for this?

Thanks you in advance