During a Junos OS v25.2 deployment for a university research network, IPv4 and IPv6 services are both in scope. Two Junos OS v25.2 routers form OSPFv2 adjacency on a link, but OSPFv3 remains ExStart and both sides show different interface instance settings. The change record is tagged for OSPFv3 IPv6 adjacency mismatch. Which action should the engineer take first?