I am seeing this every time my uplink changes due to connection dropping, I understand the uplink status change but why would the vpn drop as well? if uplink 0 (Primary) is the connection to MPLS, it doesn't create a site to site vpn tunnel.
The only site to site vpn is when using uplink 1 (Secondary) which is the meraki spoke connection to a MX250 hub
when failing over to the meraki uplink I would expect the vpn to stay up, not go down