So, I was doing Slithering Chaos with one of my characters and joined another players group, a few hours later my character still had 39 minutes of cooldown but somehow the other player (whose group I joined before) was able to form another group already, I asked him if he still had cooldown but he replied with "no". That makes me wonder, did Funcom even mess up the cooldown system? I mean, there are already a lot of known bugs, like creating a group with a few seconds cooldown left, entering and then having a bugged copy of the dungeon for another hour or so or getting into different instances without any reason.
Anyways, I saw this happen a few more times in the last few days and I tried to recreate it with one of my guildmembers and it actually worked. Somehow I sometimes got a "lower" cooldown than he and sometimes he got a "lower" cooldown than me. Yes, thats totally weird and I don't know how it happens: Once the dungeon is finished we both have the same cooldown but for some reasons sometimes it happens that one player runs out of the cooldown faster than the other. I couldn't find out what caused it (like logging out instantly, staying logged in, doing other dungeons, logging in with other characters) because it did not always happen.
Has this happened to anyone else too?