New data invalidating old data happens all the time in aviation, and they have to deal with increasing number of 5G transmitter models operating in new environm

New data invalidating old data happens all the time in aviation, and they have to deal with increasing number of 5G transmitter models operating in new environments. It's not something you can do easily. In fact, apparently issues started cropping up with 400MHz guard band used in most of europe, when the towers malfunction.