There is a known issue where Magisk may "disconnect" from root in the kernel due to a signature mismatch; the way to avoid this is to perform "Complete Uninstall" within Magisk itself.Hi ! I'm on A12 november clean install & disable verity & verification Root magisk canary.
But after flash a mod I loose the root
For Root magisk again I do flash before the original boot image and restart to remove correctly the root.
But do flash disable verity & verification vmbeta before ?
And after restart install manager flash boot img. And on fastboot flash vmbeta disable verity & verification and flash boot img modified it's right ?
If root is lost because of a module or some other problem, there's no way to really clean up the Magisk installation so that root will work again, unless you perform a factory reset.
You do not have to reflash vbmeta if you're restoring the factory boot image. Vbmeta only needs to be flashed if you are updating.