Problem with parts not showing on Parts list box

[Merlijn Wissink]

LPub3D uses its own parts libraries which are located at:

C:\Users\[username]\AppData\Local\LPub3D\data

or 

C:\Users\[merlijn]\AppData\Local\LPub3D Software\LPub3D\libraries

depending on your LPub3D version.

You have to add the missing part to lpub3dldrawunf.zip or just replace the whole zip file with the newest zip from here: http://www.ldraw.org/library/unofficial/ldrawunf.zip
Make sure to rename the zip file to lpub3dldrawunf.zip.

However, LPub3D also has a built-in tool to update the parts. Under Tools -> Refresh LDraw Unofficial parts.
In older versions of LPub3D it didn't work very well (for me at least). I have no idea if it was fixed in the recent updates, but I recommend to only use this feature if you have the newest version of LPub3D.

Hope that helps