Uh....., given Aeria history, I think all of us expected them to screw up every week, If last week surprise campaign isn't evident enough.
For weapon promo, fake blue bars and handing out wrong weapons have been common mistake (about five times already I think?). Always need to check them.
You probably don't want to say anything if you happen to get invisible gear or rank 1 weapon with maximum temper though. =P