I noticed that rain shafts are visible fairly often in METAR mode (not sure about offline weather) and that there is no cloud above them. Since I am using Boeing 777 it's not possible that the cloud moved away and exposed rain shafts, since it's a fast airplane and there is not enough time for clouds to move away that much. My theory is that either rain shaft placement or cloud placement is wrong (not in line with each other) or cloud that is supposed to be above rain shaft is not generated, but the rain shaft is.
Here are the photos:
https://imgur.com/a/Hxw7ydB
https://imgur.com/a/QH7MOMS
Maybe the photos show an extreme case. Usually there are less rain shafts visible but I see it happens fairly often. I think that a few years ago this wasn't so noticeable and that at one point it got worse for whatever reason. Any thoughts on why this is happening and if it's possible to fix it?