It is in the documentation that we should perform "apt-get update" but do not perform "upgrade", as it will break Expedition dependencies by updating some packages that have modified their internal APIs.
I am sorry to say, but you may have to collect a new Expedition VM.
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If you are a Palo Alto customer please open a ticket from your customer portal. You can open a false positve ticket, and a threat specialist will handle your ticket as soon as possible. We are unable to help customers from this venue, as much of the information you have available should not be shared in a public forum.
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