Basically just the title. I've had no issues like this when using any other weapon (as shown [url=https://youtu.be/Kuo5ynL5zZQ]here[/url]). I did a quick google search last night and found that other people have also reported the same issue here in the forums as well as on reddit so I'm sure that this issue is pretty widespread at this point. I also found that some people said that clearing the cache helps temporarily, but at the cost of being logged out as well as it not being a permanent fix.
Dear Guardian, This is a known issue and it is also noted that using a revelry ornamented helmet also causes crashes during the forge.