A lot of people had issues, with the main one being that they would fly a session, then start a second session and find the weather had switched from live to clear sky.
There were others that had an issue where it was always clear skies when they flew their first mission, or that after leaving the gournd, in mid flight weather would suddenly clear up and change into clear skies.
People found ways to get around it. They would start the second flight, or while in-flight, they would switch to clear skies, and then back to live weather. That would sometimes fix it and reload live weather for that flight.
If you search, you will find lots of posts about this.