Parts we are Working on - Part Drei

[Philippe Hurbain]

I downloaded the following 4 files and placed them in the correct directory, but some of them are wrong when displayed. What could be the problem?

C:\Users\...\AppData\Local\Stud.io\CustomParts

parts/4423.dat
parts/s/4423s01.dat
parts/s/57515s01.dat
parts/s/57515s02.dat

Studio library is NEVER up-to-date  , and finding missing (official) parts or primitives is a nightmare...
After extensive search, I located the missing one to be 1-16ring4 primitive, to be placed in CustomParts\p folder.