Make 2D not recognising polysurfs or srfs

Hi,
Wondering if anyone has any idea how to resolve this issue. Using Rhino 8 - Trying to make 2D for a sectional perspective. When selected, some of the polysurfs and surfs are being picked up when selected, but not made into 2D. Command replies ‘no output geometry found. nothing done’

Have tried to M2d one of these objects in multiple views, and still no success.
I’ve tried exploding/rejoining. Have also tried ‘matching properties’ and tried ‘selbadobjects’ and nothing was selected.

What change could I make so that all the objects are picked up in the M2D?

thank you!

Can you post a 3dm file with one or more objects that have the problem?