This bug has always been here but in 1.12 it seems worse than ever.
Apart from being incredibly annoying hearing ATC constantly reprimanding AI, she is also too busy to give me permission to climb to cruise alt on departure (or maybe this is another bug) instead I had to request altitude increases 3 times until I got to cruise alt.
Is this a known issue and something that will be addressed in the next update? Perhaps it is due to changing weather conditions? Could they add a +500feet buffer to stop this?