First noticed issue on 1.5-rolling-202410300007, now running 1.5-rolling-202411230007 across 6 routers linked together with GRE tunnels.
OSPF configuration is fairly simple, area 0 spans across PtP links between all routers and each site has a separate area for its local networks. The routing table is installed and works as expected at first, but after some time (or maybe interface flaps) some routes are no longer installed, but still visible in show ip ospf database. Restarting OSPF process with restart ospf fixes the issue. I have just done this recently so don’t have any data to collect, but it will likely reoccur soon and I can include more diagnostic data then. For now, I am wondering if anybody else has seen similar behavior on recent releases?