Hi g-eaux,
This issue has been reported by other users as well and is registered by Autodesk´s Product Design and Development Team.
In order to overcome this issue, there is a program code change necessary.
As a workaround for such sections in the current versions of AutoCAD Architecture and AutoCAD MEP, you will need to adjust the linework of the affected sections manually. Please, follow this procedure to do so:
To Edit Linework in a 2D Section
I understand you were hoping for some better news, but I hope, that you´ll find this information still valuable.
This issue is not considered as resolved by Autodesk as long as we haven´t been able to implement an according program code change, however,
In order to point other customers with the same question to the current status of this issue, I´ll go ahead and mark this reply of mine as an accepted solution.
Thanks for your patience and understanding and also thank you for your participation in the forum.
Best regards,