Plan and profile - named boundary - DGNLIB in ORD

I'm using ORD 2019 Release 2 update 7 in a bid project. We been using this version to model the highway project that we're working on. During design we produced a lot of sketch using a DGNLIB and the named boundary for plan and profile. Suddenly when we use the same DGNLIB, we cant get the DGN file reference in the sketch to show in the plan view. Only DWG file are shown.  Any idea!