Skirmish & Bots now BROKEN?!

I dont know if they also changed/altered the behavior of AI bots in Skirmish mode with the new but small patch this week, but this weekend while playing with a friend in Skirmish mode over LAN we started to get annihilated by the nightmare AI bots. This is something new since we have been 2 vs. 3 to 4 nightmare bots on our own for the previous 2 weekends.

Something is seriously messed up when in one game we start seeing Sedna moving around at max movement speed for well over 30 seconds and every time we encountered her. Then we noticed that we literally could not do any damage to her, she had no oak shield, no QoT shield and was not used the invuln item. Example: my friend was playing Regulus and hit her with a crit shot from his bow, his maxed mines, and mark of the betrayer for over 3k dmg of which she had (only..) 7k health. Then he proceeded to watch her regen that amount in 1 pulse (1 second or so). We were actually a level ahead of the AI at this time and within 5 minutes noticed that all 4 bots were now technically invulnerable 100% of the time (no matter how much dmg i did with 2k crits from Erebus i could not even see their health budge). All we could do was attack their base while they assaulted our citadel and hope we would be quicker.... we werent.

I thought it was a glitch so after losing, we started another match on the same map and even after i outlvled the AI by 4 levels i soon noticed that i could no longer do any dmg to them again and their movement speed maxed. Did GPG or someone change the behavior (making them unbeatable) without me noticing?

The STATS: Zikarut map, 2 human players with 1 hard AI bot ally  VS.  4 nightmare AI bots over LAN skirmish mode. Both clients running version 1.00.070 on Windows Vista laptops.  Like i said we have put in over 50 hours worth of skirmish time together since the game came out and only after i updated my clients on Saturday at 5pm did we encounter this problem multiple times. Any info would be appreciated.