All CSAT (Pacific) Zamak's with Green Hex textures are missing editor preview textures in current RC 1.94 and Development Branch rev. 18.104.22.1688
Issue does not exist on Stable version 1.92.x
Confirmed issue exists on Dev branch by extracting PBO and manually verifying that the textures do not exist in this version.
Confirmed issue exists on RC branch by having another user with RC branch installed follow repro steps below.
Confirmed the issue does not exist on Stable 1.92.x by using repro steps on vanilla game.