iPad used as external screen switches between "Mirror or Extend" and "Link Keyboard and Mouse"
I use an iPad as an external screen in Sidecar mode. When it works, it works well, but every now and then, the iPad "flips" to "Link Keyboard and Mouse" mode, without me prompting to do that.
Then I have to go to the System Preferences again and change the iPad manually back to "Mirror or Extend" and rearrange all the windows.
I have not found out yet what prompts the iPad to go back to "Link Keyboard and Mouse" mode. It happens seemingly randomly.
I have the latest OS versions on all devices, the iPad is a large iPad Pro first version (but it also happens with my iPad Pro 2)
Thanks!