I think we ALL know who to blame..... CHAMPIONS. Kill it already. CoH is dead and gone and still a better hero-sim than CO will ever be. I'm joking of course I like Champions. I need something to keep my sports illustrated from getting blown around by my desk fan. Or anti cat projectile. Or drink coaster.
I'm having same issue as OP, going to submit bug report but not going to hold my breath with season 7 looming. Might be a while before devs get to this. Wonder how long its been an issue though?