It was "upside-down" only relative to the prior implementation. And it was made clear earlier in the thread that you had fixed it being previously upside down. So I think it's all good now. ☺ Thanks for your work on FreeCAD!

... The Vertical-A section is upside down The author of TechDraw just re-worked the orientations of the views as they were incorrect in various cases. This means that if you previously had a "top view", maybe now you need a "bottom view". Big Internal Changes for View Orientation You should probabl...

You may try with a current 0.19 version. Many things have been fixed, and it got a new Qt version. Downloaded and tried FreeCAD_0.19-18811-Linux-Conda_Py3Qt5_glibc2.12-x86_64.AppImage Well, that's interesting! Yes, it makes the drawing show. However, there are some artifacts: The Vertical-A section...

Thanks for checking! It seemed unlikely that the information was actually lost, since older versions of the file also failed to load, and I had made changes to the drawing since. After posting about the problem, I recreated the drawing and it is working fine. So I'm not in a hurry; I am more trying ...

I have a model for which I have created a TechDraw drawing. I opened the file in FreeCAD to make a modification to the drawing, and it rendered only gray. I have been keeping versions of the file in git, so I reverted to older versions of the file, and it still renders only gray. However, two other ...