(unofficial) Part 7684 - broken in both LDView and MLCad

[tom alphin]

It looks fine on the LDraw website, but when I update my Unofficial parts library, it appears broken in both LDView and MLCad.  I have tried this on multiple Windows 11 amd64) devices.

Screenshot of part 7684 in both apps:


This is not a new issue, I probably noticed it 6 months ago, but was busy and didn't want to file a bug until I had repro'd the issue on a second PC.

---Tom

[tom alphin]

P.S. It is a new part for 2026, and since it is already in 3 sets and 3 different colors, it is ranked in 1029th place for the year.

[Orion Pobursky]

What, if anything, does the LDView error window show.

[Magnus Forsberg]

It looks like you don't have the correct version of the needed subfile s\64451s01.dat
It has been reworked and is now used in three parts: 64451, 11455, and in the new 7684.

   

[tom alphin]

It looks like you don't have the correct version of the needed subfile s\64451s01.dat
It has been reworked and is now used in three parts: 64451, 11455, and in the new 7684.

That is likely the problem, but I do not know why I would be in this situation. 

Why wouldn't I get that file automatically if I take the following install steps on a brand new PC:

1. Install x64 LDraw AIOI - LDraw_All-In-One-Installer_2026-01_setup_64Bit_v1
   
2. Install x32 LDraw AIOI - LDraw_Additional-Tools-Installer_2026-01_setup_32bit_v1
   
3. Launch LDView, File > Check for Library Updates
   
4. Download latest Unofficial parts from: https://library.ldraw.org/library/unoffi...rawunf.zip and unzip them to C:\Users\Public\Documents\LDraw\Unofficial
   
5. Launch MLCad, File > Scan Parts
   

That's a detailed explanation of my install routine on a new PC.

It's likely there is a problem in some step like "Check for Library Updates". If this were buggy, maybe it needs to be fixed at an installer or app level. It is also possible that, for some reason, those subparts aren't getting included in the Unofficial Parts .zip file.

Sincerely,
---Tom

P.S. if this isn't a part issue, we can move thread to a different forum.

[Orion Pobursky]

It's likely there is a problem in some step like "Check for Library Updates". If this were buggy, maybe it needs to be fixed at an installer or app level.  It is also possible that, for some reason, those subparts aren't getting included in the Unofficial Parts .zip file.

Try downloading the complete.zip from the latest update and replacing your LDraw directory with it's contents.  If that works then LDView isn't downloading updates as it should (which may be a problem with the LDraw server, LDView, or both).

[Gerald Lasser]

As the sub-part is an official part (but reworked) LDView is lacking this information.

The part in question and the common sub-part are still unoffical

LDView finds the old sub-part and uses it. It won't update.