You can see your hand in /vanish
vanish is "no packet" in staff+ and it works fully as expected. you are able to see the hand because staff members that have total vanish are able to see other players in total vanish.
this is NOT a bug and it will work as normal as long as the players you are expected to not see you do not have the total vanish permission.
That only sometimes happens, if you want the full experience of vanish, DOWNLOAD vanish no packet
Also it's a pest but you can do /vanish total to ensure in vanish no packet mode
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