Same exact issue here. Started with poor performance after su7, now after the hotfix I’m unable to even load a flight at all. Says I have a bandwidth issue upon loading the main menu and I’ve been turned to offline mode. Same results regardless of whether I change back to online or not. Community folder is empty, sim freshly reinstalled, hosts file fixed after google mod. No luck. Sim is a brick for me.
If you use or have ever used the Google Maps Replacement add-on/hack, make sure it didn’t leave anything in your hosts file (windows\system32\drivers\etc) Remove or comment out any lines that seem like they might refer to scenery or maps. This fixed the EXACT same issues as illustrated in your video for me.