Just wanted to confirm we also see this issue. It results in around half of the units being unable to path find properly. It doesn't seem to be dependent on the distance moved or the building and its position. The impact is random. What I do know is that the AI will not move with repeated calls to doMove, they will if stuck forever be stuck and unable to get to that position from there current position. This has not been fixed in recent releases.
Mar 14 2019
Dec 11 2018
In 1.86 and 1.88 this range on a final spotting skill of 1.0 has now been reduced to 320m and just 210 at minimum skill. This is having a dramatic impact on the AIs ability to spot and engage at reasonable ranges and there are better ways to balance the AI inside of woodland if the spotting time and spotting range had a wider value range.
Nov 25 2016
May 10 2016
The AI is spamming the RPGs extensively. In previous patches they used them mostly against vehicles and only occasionally against infantry. They are now using them almost likely primary weapons.
Worse than that the RPG seems unaffected by AI skill. They are deadly accurate at 700m, they never miss and will fire rockets in preference to their rifles. Its like the AI is walking around with artillery and it changes the nature of the game dramatically from Alpha and initial Beta play as well as the gameplay style from Arma 2. Its not good from a mission perspective, whether realistic or not its simply no fun to play against enemy with RPGs, they simply use them too readily.
May 9 2016
I am not seeing this on a 2x 680 SLI with 2 monitors, alt tabbing works smoothly.