When mesa is available for Circuit sometimes i have to select her multiple times to get the mods to actually work on her peacemakers. Otherwise I fight in game with unmodified Peacemakers.
All the other mods on my frame work correctly, and no other exalted weapon warframes seem to have this issue but mesa, which is frustrating as she is easily my highest dps behind Gyre.
Ive noticed when her peavmakers are bugged, they appear the default gold color, not the colors ive modfied them to. Usually selecting the frame twice fixes it, but lately that doesnt even work, and mods are only partially or not applying at all. Especially elemental mods.