How problematic can this be in the near future? My front hub (Shimano MT400-b) is making a bit noise, which I first thought was coming from the disc rotor rubbing against the brake pads. Bike is Cube Reaction Hybrid Race 625, driven ~1300km with it. I tried to take the hub apart but could not remove the end caps for the life of me, so just put it back as it was and decided to deal with it later.
Video here:
Video here: