Samsung S9

When Hope, from the Sacred Order, use her 2nd skill Hearten lvl 1, Athel's counter buff from Skullcrusher disappeared and would not activate either.

I don't know how to upload screen shot here. But I do have screen shot of it.

It happened multiple times in arena.

Skullcrusher 2nd skill buff allies with protection and counter.

Zelotah 2nd skill buff allies with shield and continous heal.

Then Athel use her AOE skill.

Hope use her 2nd skill increase buff duration. This is when Athel counter buff disappeared.

The opposing champ attack with AOE. Both Zelotah and Hope countered but not Athel.

After another round of turns, the buff reappeared with 3 turns left. And Athel countered this time.