after 1.13 update combat tagging have some problems, now people can fly in combat they can throw ender pearl in combat
about pvp arena problems:
arena's door wont knock of combat people more, they can go pvp protection area in combat (IMG1 shows place of that glitch)
people sometimes shoots from arena's not visible wall and running protected area (1 block backwards) very quick, people cant attack when someone do that glitch but glitch maker can attack any people (IMG2 shows place of that glitch)
arena's teleport plate doesnt work after 1.13 update (IMG3 shows place of that problem)
about pvp arena problems:
arena's door wont knock of combat people more, they can go pvp protection area in combat (IMG1 shows place of that glitch)
people sometimes shoots from arena's not visible wall and running protected area (1 block backwards) very quick, people cant attack when someone do that glitch but glitch maker can attack any people (IMG2 shows place of that glitch)
arena's teleport plate doesnt work after 1.13 update (IMG3 shows place of that problem)