Health bar glitch when on fire?

[Reeno]

Last night I had perfect run end at the final boss because my Bard died, even though he looked like he was full health. When he was ignited the health bar just kind of darkened and becomes semi-transparent and appears as if it's full even though the character is losing health. Am I just blind or is this an issue?
Playing on GTX 970, driver is 384.76

[MarjutFB]

When a hero is taking damage over time (for example when on fire) the bar goes darker to mark how much he is going to lose. So, it's not a glitch but gives you an opportunity to try to save your hero.

Still I'm sorry that you lost a run because of that, hopefully next time is better.

Also let me know if you still have questions! :)