Sounds familiar. Sometimes when I play tank, I want to engage, so I turn around, confirm that my entire team is with me, and then I die alone on the point because in this second they decided that what we need is 4 flanks, lol. When it happens, I usually don't even know how they left so fast. Also people who think that cover means blanket apparently, because they stand out in the open waaaaaaaaaaaaaay too far from any corner and then flame you for not shielding/healing them because it's 100% your fault that this Cassidy engaged 1vs 5 in the middle of the room. Safe positioning? Hell no, support diff, tank diff, second dps diff, your mother diff, everything diff besides the player who does this because what could go wrong 😆 I also had situations when the tank was seeing that I play a squishy slow support/dps and when they saw that somebody decided to dive us, that person just dismantled the shield and left me there to be melted. I once was flamed by an Orisa who somehow matched all of these descriptions, so I watched the replay from their perspective and that person was not even moving the camera around, just going ahead in a straight line and kept getting flanked by players outside their field of view, but it was our fault for not healing them... amazing...