Oh, I see. Hover your mouse on the left side of the screen and a little tab should appear. From there, click the menu, then open "Settings". From there you should be able to switch from the GNS to the GTN for the 3D object.
This was fixed a while back with the latest update of the M20. If you haven't already, you will need to migrate your license (for free) to X-Aviation to access the latest version. Instructions can be found here: https://afms.im/FHLFNJ
It has been a busy week due to the holidays, its a priority for this week though, but I can't give any ETA. We may push a plugin-only "hot fix" a few days prior to a general release to get a wider testing base. Make sure to check the discord in the next few days for news of that.
Yes, this is due to the revamped XP oxygen system and how our previous custom system tricked X-Plane into being able to simulate hypoxia. This will be accounted for in the V4 update when we migrate to the new oxygen system.
That sounds like something is not loading properly. After loading the plane in-sim, can you attach the file "log.txt" that is located in the root of the X-Plane 11 directory?
It is being put out in various steps, as we add the various things. You can be part of the public beta by joining our Discord server where I can add you to the testing group. Details in this blog post: https://afms.im/ByRcCB
Ah, I see - it is a simple file directory problem. Please move the AFM folder so that the path looks exactly like: X-Plane 11/Aircraft/AFM. Right now the path you have set is X-Plane 11/X-Plane 11/Aircraft/M20 3.0.3/AFM/
Just moving the AFM folder should get you back up and flying!
(note this directory dependency is being worked on so in the next version the AFM folder can be anywhere in the Aircraft directory and any subfolders within)
That is definitely odd. Are you using any switch/ap external panels? I am trying to figure out what would interfere with the AP to cause it to not engage. Can you try deleting the M20R_prefs.txt file in X-Plane 11/Aircraft/AFM/M20R Ovation II and see if that stops the issue?