Date & Time: 6/18/19 Around 11:40 AM EST
Frequency: Every time I enter an instanced duty
World name: Sargatanas
Character name: Sumomo Sumo
Party or solo: Both party and solo
Steps:
1. I initially queued into a trial.
2. The battle began and my attack inputs were periodically being ignored.
3. The issue lasted through the entire fight and in subsequent unsync runs of Sastasha.

■ PS4 Specs

Model Number of the PlayStation®4 You Are Using
- Model Number: CUH-1115A