Can confirm it still happens, match id 2036847 around 4:44 am pdt. The bug seems to be caused by any interruption (sleep stun ect) during the charge animation of Yamato's 1; in my case it happened because I was stunned by seven's shock and didn't go away until I used my 4.
I confirm this bug, happened to me in private bot match. Couldn't recreate it in hero sandbox because it requires interruption of her 1st skill animation.