Better chase support as F5 rSeries support for SSLO is a new thing.
Other than that if the topology is Layer 2 with vwire maybe there is the issue as vwire needs to be added to the tenant in rSeries and it could still have some issues.
2.7. Creating Layer 2 Topologies (f5.com)
Network Settings,Network Settings,Network Settings,Network Settings,Network Settings,Network Settings,Network Settings (f5.com)
Also the SSLO migration is not great as maybe on 10.1(17.1) with snapshots it is the most easy but from a platform like iSeries to rSeries tenant better configure the topology from the start on the tenant.
Platform Migration and SSL Orchestrator (f5.com)
Creating Snapshots,Creating Snapshots (f5.com)