It's weird, it acts perfectly normally during general gameplay. But during dialogue cutscenes, the chainmail sleeves on the forearms stretch down past the elbows and then retract again depending on arm movement. Going out the farthest when your character crosses their arms. The friends I was in a multiplayer game with first noticed it happening on my human woman barbarian, but then I noticed it was also happening on my elf woman bard in single player and grabbed some screenshots.
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With subtle arm movements it grows and shrinks back. But when your character crosses their arms wearing it, the sleeves shoot out past their elbow to the full length of an arm and just stay that way.