MitID is a very finicky app that sometimes stops working in GrapheneOS. For that reason I strongly recommend disabling automatic updates for this particular app in the Play Store, and only updating when there is evidence that the new version will keep working. It's also worth it to order a code display as a back up authenticator — it's free.

For the sake of other users I will try my best to document here which versions work and which don't work.

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