AI stop attacking after 20 minutes or so

Me and my friend like teaming up against 1 or 2 Sorian AI, or Sorian AIX, or Sorian rush, doesnt seem to matter what type.

We use a few mods, Total Mayhem, Jaggeds Infrastructure Pack V2, BrewLAN, RK's explosions, Advanced Shields V4 Fixed.

First 20 minutes, all good, then they simply stop attacking. Tried varying the mods and the map, doesnt seem to make a difference.

Seems to have happened since the last update.

Any idea's or advice?!