If a diablo charges while another diablo overpowers a hero, they will be stunned in the air until the diablo that overpowered uses another ability or gets stunned.
Yes, this has happened to me too today in an ARAM vs 2xDiablo.
But seeing that the problem is encountered since April, doubt it’s on the to-do-list for the (remaining) developers…maybe it’s treated like “an edge case”
Nonetheless, I will also send my match replay to their email for bugs