Whenever I gain a weapon level the displayed message is all garbled. I think it's happening because the weapon level message does not redraw the message lines but rather overwrites them, leaving in words from the previous message.

When I go into the message buffer to check what actually happened, I scroll back to the line. Not just the message of the weapon level is differently coloured, but also the hit that caused me to gain the level, I'm not sure if it's a bug. It just looks weird.

Screenshot: