Same Issue I'm having

Some mods failed to load. Update or remove the affected mods and try again.

System.MissingMethodException: Method not found: System.Collections.Generic.IReadOnlyDictionary`2<Mafi.Tile2iSlim, Mafi.Core.Roads.GraphTerrainConnection> Mafi.Core.Roads.RoadsManager.get_TerrainGraphConnections()
at (wrapper managed-to-native) System.Object.__icall_wrapper_mono_gc_wba…