Not sure why it's not switching on Leofinance, but one possibility is that they don't have it configured to auto-failover to other nodes (each frontend can configure which API nodes it wants to "trust").
Hive engine issues are outside of the scope of what hivemind does, as it is a distinct 2nd layer service with separate infrastructure established for that. I believe they're currently working on decentralizing that infrastructure and making it more robust against single point failures.