This occurs when too many units are on the map.
New movement commands are given, but not obeyed.
I’m not sure if they start walking when enough units got killed, but they don’t start walking when a movement command is fulfilled.
this behavior can be observed in this scenario:
http://www.file-upload.net/download-7987022/pigdefense.zip.htmlIt’s a towerdefense with just pig waves and just 10sec between new waves, every wave will be 130% of the wave before. Since the pigs are slow and CPUs need some time to die, there is a huge amount of pigs on the map. The CPUs are still alive when the first units stop moving.
Edit (tomreyn): Removed [bug] tag, not needed on the
bug reports forum.