The bug is this one: Live weather stops injecting after a certain duration flown / certain time flown
Even if the title says “after a certain time”, some users have that issue since the begining of their flight. Temp & Pressure are ok but there ara no clouds or clouds stop to be injected during the flight.
Some workarounds to try If you are using a PC:
-disable IPv6 in network settings
-Use a VPN