Playing on All the Mods modpack version 2.56
Forge: forge-12.18.3.2297
cyberware: cyberware-1.9.4-1.10.2-beta-0.2.10
I'm not sure how to reproduce it, but in random intervals of time (and all players at once) we lose our installed cyberware augmentations, it just simply disappears, we don't need to dc or change dimensions or anything fancy, it simply disappears.