Your username: BantaPvP In which minigame/server does the bug occur: Skywars Detailed description of bug: I could not hit another player while in skywars, although he could hit me. ( Video will be up in 5m)
I still haven't been able to watch the video, but seeing as there are only 12 seconds of footage, you probably haven't recorded the entire game. If this happens again, it would be helpful to record yourself before the game starts, to see if there's anything that causes this bug. Also, do you remember doing anything before this bug occured? For example, going into ./disguise? Something probably caused you to stay in Adventure mode (like you are in the Skywars lobby) instead of going into survival mode, to be able to PvP.
You were most likely blocked glitched. If this happens again, simply scroll to something to put in your hand other than your sword, then go back to the sword and it should be fixed.