So to be brief I noticed after the update that the ION shoulder plates will get this weird texture any time I ADS with them on in mission. Tbh it's only while ADS but it seems to only be the back area you see from. Another piece is the protosomid shoulder plate from the infested nightwave a while back.this one just doesn't seem to visually appear at all, just a blurry see through outline that flashes in and out rapidly.
Idk if this is known already and it's cosmetic but it was working fine pre duviri. There was at least one other player who mentioned similar issues in chat and we're both on PS.