I have the same issue. Game is currently unplayable for me.

Confirmed using Logitech X56 HOTAS, the issue is the game is constantly switching between the two inputs (MKB & HOTAS) which causes the cursor to stutter. It should be a quick fix by Amplitude by just disabling Gamepad detection on Gamepass entirely (as it is in Steam).

Yup same thing for my controller, sure I can just disconnect it but that's still a nasty bug

Even weirder for me. I don't have any other controller beside mouse and keyboard plugged in (even tried unplugging sdd drives/usb microphone/audio interface) and the identical problem occurs. Stumbling upon this thread made me realize I've used a flight sim joystick before on this computer and that's probably the (eerie) reason. For a temporary and far from ideal workaround - the game prioritizes mouse+keyboard when it receives signal from them. Holding ctrl for instance makes mouse movement smooth and game somewhat playable. Best regards! 

I have the exact same issue with Logitech X56 HOTAS.

Yep, confirmed I'm seeing the same issue here with a Thrustmaster T.16000m stick-and-throttle setup. Mouse is totally jerky, to the point that I can't even start the game, with my joystick/throttle/rudder pedals plugged in. If I unplug them, it works fine.

"Unplug them to play" is not a viable solution, given my setup. It's not easy to get behind the PC to connect/disconnect the controllers.

Yes Same here with PS 5 controller ( I am using my controller as microphone on stream )

I posted it on twitter and many people have the same issue with their periferals. Easy fix is just unplug them and it works as it should, bit annoying tho if you use it with the game.

Same problem with Warthog HOTAS setup.  Unfortunately my USB connections are at the back of my machine and a pain to get to.  Not going to keep disconnecting my HOTAS just to play this game.  Hopefully they fix this basic programming issue or it will be a short lived game for me.  

Like every other msfs/flight simmer on here, same thing for me. T16000 + Honeycomb Bravo setup. had to disconnect both to play the game properly.

Does anyone know if there is any kind of acknowledgment from the devs?

Hey everyone!  I contacted SEGA.   This is the response they gave me.  It's pretty pathetic.

Nadim (Support)

Aug 23, 2021, 17:20 GMT+1

Dear Teriander,

Thank you for contacting SEGA Support.

Please make sure to unplug any other third party devices that can interfer with the game and the mouse/keyboard setup.

Sadly there is nothing we can do under such circumstances and can only recommend you to only use the mouse/keyboard required to run the game properly.

Best Regards,

Nadim

SEGA Support

I have over 200 games and this is the only one that requires me to unplug my USB devices. Not going to happen. I hope their uninstall works better than their game input coding.

Game programming 101.  If your users can't get passed the main menu for whatever reason, you're already getting negative reviews.