From the patcher: Here's a sneak peek at the Update notes for Thursday, November 19th

*** Miscellaneous ***

- The Mission Teleporter window should no longer cause message spam.
- Fixed an issue with the Vitrik Wing Swipe ability not affecting the proper targets.
- Fixed an issue that caused custom UI’s to not display the correct right-click menus in the group window.
- Disabled the ability to make purchases on the marketplace during monster missions to prevent players losing items.
- /clear can be used to clear your chat window once again.

- The EverQuest Team