While not technically a bug, I think it is non-intuitive to hide the dockscreens:

<DockScreen UNID="&dsRPGManageMiscDevices;" />
<DockScreen UNID="&dsRPGManageWeapons;" />
<DockScreen UNID="&dsRPGRemoveDevice;" />

in the file RPGArmorDockScreens.xml. Even more so since there is also a file named: RPGDeviceDockScreens.xml