W Van Hi! Here are my answers:
When did this start happening to you?
I think about 2/3 weeks ago.
When does this happen?
It happens when I freshly start the app, without it running in the background or something.
When this happens, do you get to see the 'device unregistered' screen?
I don't see a screen litteraly saying that, but I do get a screen as if I newly downloaded the app.
Do you have Slice installed?
No, I don't.
Do you use bunq on other devices?
No, I don't.
What phone make and model and OS version are you using?
A Samsung Galaxy SM-G935F running Android 8.0.