Build a map with only World Trees, Spike Blockades, and Angry Nimbus. I had 17 Nimbus total on the map and all stopped moving and targeting at the exact same point.
Expected Results: Angry Nimbus should continue targeting mobs throughout the entire duration of the map.+1
Encountered this in C1 Mastery, Ramparts map. Almost all of the Nimbuses I built just sat on their grass pad and never moved. I had to sell and rebuild them to get them going again. Based on above comments, it does not appear to be map-specific and occurs randomly everywhere.
This is 100% reproducible on chaos trials map "Throne Room". The Nimbus will stop attacking in Wave 4. (Does not happen on campaign map, which has a scripted boss on wave 4)
Lost two matches to this until I realized what happened, confirmed it a couple times. 100% of the matches the Niumbus will stop targeting in the middle of the wave and just hover wherever they happen to be at that moment.
Also 100% reproducible on chaos trials map "Dead Road" in wave 5.
As stated, can reproduce on Dead Road C2 mastery map on wave 5. Of note, sometimes all of the nimbuses freeze, sometimes one or two continue to be able to attack. The nimbuses do start their attack animation and head towards a point, but once that enemy dies they get "stuck" at that position and don't do anything from there.
I've had this same issue, once doing C6 Dead Road nimbus-spam build, then again doing C3 Dead Road (twice) trying to recreate it. This is on PS4 for me. It has happened mid-way through round 5 each time. I haven't been able to recreate it on other maps yet (tried on Bastille and Sewers c3).
In my third attempt, I sold some Angry Nimbi and redeployed, and those new Nimbi worked while the original ones were stalled.
Links to vids:
1) https://www.youtube.com/watch?v=lXcs0pbQG6c
2) https://youtu.be/67tubQFN45w?t=540
3) https://youtu.be/R8zqbVAoRFQ?t=470