Anna took the camera out a year after Tatara's death. Mikoto wasn't there for her to wake up with it or make memories with. There was no Tatara to absolve her if they damaged the camera.
Even so, she wanted to add her own memories to HOMRA again, so she took the camera in her hand and went out to find Misaki.
He sucked in a breath when he saw it but pasted on a smile as he waved. Fushimi stared at her a moment.
"It's good to see you," she said softly.
He was part of their memories too.