When submitting a bug report, please use the below template and thoroughly fill out the necessary information.

Date & Time: 8/24/17 about 9:00-10:00EST
Frequency: constant
World name: Excalibur
Character name: Nirokun Moon
Retainer name: N/A
NPC name: N/A
Monster name: N/A
Class/Level: SMN/70
Party or solo: Party
In-game time: N/A
Area and coordinates: Feast, either map
Housing:
Steps:
1. Cast Bio III/Miasma III on target.
2. Enemy PLD covers target.
3. Fester target results in miss, no Aethertrail Attunement stack gained.
4. Forced to wait until next Aetherflow to attempt to complete Aethertrail Attunement stacks.
5. This behavior (not granting Aethertrail Attunment) was removed in PVE but not PVP.
6. In PVP, DMG intended for target from Fester is not directed to PLD, instead Fester looks at PLD's DoT status and misses. Fester should consider target's DoT status instead as it does in the rest of the game.
*Add more steps if necessary