Cant see edges on backside of object since 2023.1 Update

[FionaFergusson8795]

As you can see in the screenshot attached I can see any edge that are on the backside of the object since updating to 2023.1 this morning. Its frustrating as I need to see where they are.

How to I enable this in the viewport?

[ads_czechoj]

Hi Fiona, thank you for reporting this issue. Please check if the Backface Cull is <On> or <Off>. If this won't help, please attach your 3dsmax file for further investigation.

[FionaFergusson8795]

Hi. It's not backface cull as its the same on every file I work on. I cant upload the file and its client sensitive but its EVERY file since the 2023.1 update.

If I go into either vertex, edge or poly mode the back faces disappear.

If this is an issue I'm going to have to reinstall max to go back a to 2023 which is massively frustrating.

[ads_czechoj]

Can you delete ENU folder and try max again:
C:\Users\UserName\AppData\Local\Autodesk\3dsMax\2023 - 64bit\ENU

[short.cirkuit]

im having the exact same issues - any solution?

[ads_czechoj]

I would like to know what is the origin of your models

1. Created in an older 3dsmax version and the issue appears in the new update.
2. Imported as an FBX (or any other format)
3. Downloaded from a 3D store and not created in 3dsmax

[short.cirkuit]

a bit of everything you mention

[ads_czechoj]

This issue can be challenging to solve without having the model or at least a part of the model.
Please try a few modifiers like turn to poly, edit poly (or mesh), convert to mesh (poly), Mesh Cleaner, Retopology, etc. 
At one point, the model may behave more as 3dsmax default geometry should. 

[short.cirkuit]

hi guys - any update on this?  Here is a simple cylinder i created, as you can see, you cant see the back edges, just the verticies?

[trevillaengineering]

I haven't updated the new version yet, so I'm not sure exactly what to say.

[short.cirkuit]

Dear autodesk - please please please can you look into this?  its been an ongoing post without resolve for months!!!!!

[ads_czechoj]

Please attach any 3ds Max file with the issue described in this post and shown on your screen captured images. The problem is related to the specific geometry imported to your scene. I need to examine any model where I could reproduce the issue.
Thank you in advance for your help!

[short.cirkuit]

sure - see attached

[Erik.abSketches]

My max 2023.2.2 is doing the same thing.

[short.cirkuit]

@ads_czechojplease see responses and files attached?

[ads_czechoj]

Thank you for the file and image. Only one option could make this happen/ At one point of modelling, the invisible edges/faces were selected and hidden. Please use the Unhide All bottom in the Editable Poly  Edit Geometry tab. 
But I can't reproduce the same issue after opening your file:

[short.cirkuit]

@ads_czechoj Hi and thanks for that.

Ive been using max for over 15 years & i can assure you its nothing ive done as a user - its something to do with one of the recent updates.

I tried your method and it still doesnt work?  the only way to see them for me is to temporarily flip the geometry.

[ads_czechoj]

Everything is possible. If I could reproduce it we would know what needs to be fixed. It could be a view-port setting, new video card, a display error, material, etc. Please try to reset Workspace to a default state:

[short.cirkuit]

@ads_czechoj yep tried this and it still doesnt fix it - i did a video also.

I also tried it on a new BOX shape - same issue

What viewport setting do you think it could be?

[Erik.abSketches]

I am able to create a brand new file and create a box with multiple edges that disappear when in edit modes. See attached. Resetting the workspace to default does not resolve the issue. No issues in Max 2017, 2019, or 2022. Looking for a resolution to this here as it is slowing down the modeling process.