Wall rendered as hidden

[roni]

When a project is rendered in Archicad 26/27 using our C++ code, the wall is missing in the 3D view. However, the wall appears in the 2D view (second storey). Additionally, if the wall is moved from its original position in the 2D view (as shown in image), it becomes visible in the 3D view (yellow wall in the image)

  

 

[Ralph Wessel]

If all it takes to make the wall reappear is to move it, I wonder if there is something wrong at the wall junctions. You can get effects like this just manually placing walls when the junctions aren't well-defined. Do the walls connect cleanly at a single point? Are there possibly any tiny fragments of walls at the junction?

[roni]

Will check the wall junctions
Another update was if I change the door placed on the wall, wall will get hidden again.
Attaching the video of this
https://drive.google.com/file/d/12CxoZJpstR86xrH2iqk1TukNMDjHPdwu/view?usp=sharing

[Ralph Wessel]

Can you upload just enough of that project to illustrate the bug so I can take a look at it?