Blender causing Interior to be messed up?

[Short_Circut]

So I've been trying to fix a few small details on some modded cars and while the process itself didn't seem too bad, when I eventually finally managed to save it as kn5 I noticed that the interior was all messed up

I tried converting the extracted .fbx into .kn5 (using kseditor) and it came out fine. Then I tried importing the .fbx into Blender, without doing anything immediately export it and try converting that file to .kn5 and that's when I noticed the issue happening. So I know it's not an issue with what I edited, but rather some setting in Blender that is potentially ruining it?

I even tried it with an RSS car just to be assured it's not the mods fault and I noticed the same things

1st attachment is the Blender export, 2nd attachment is what it should be like

 

[Stereo]

Looks like something's wrong with the normals, I've never had that happen though (I use blender 2.81, 2.92 recently)

 

[Short_Circut]

Looks like something's wrong with the normals, I've never had that happen though (I use blender 2.81, 2.92 recently)

Hmm could it perhaps be an issue with the settings when exporting? I did notice there were some options to choose from but idk what each would do so I just left it as default

 

[OwenMstar45]

is the glass set to alpha blend and transparent true ?

 

[Graham Botha]

I have the exact same problem. The dashboards of cars get messed up when importing the fbx file from Blender into ksEditor. It's clearly visible in the preview window within ksEditor. Initially it seemed to be the persistence file that somehow gets corrupt. I worked around the issue by replacing it with the original file and then fixing the transparency value that are incorrect before saving as a kn5 file. That worked like a charm. Unfortunately I had to reload my pc and now it screws up the interior and I just can't manage to fix it doesn't matter what I do. Using Blender 3.0. Any ideas?

 

[Graham Botha]

I've just downloaded Blender 3.2. Extracted the FBX file, modified it, exported it again and imported into ksEditor after overwriting the persistence file with the original and it looks like it is supposed to. So this issue may be specific to Blender 3.1.