Winter of aespa has withdrawn from scheduled activities due to health concerns.

aespa held the Bangkok stop of their third world tour 2025 aespa LIVE TOUR – SYNK : aeXIS LINE on November 16 at Impact Arena, with three members performing without Winter. According to SM Entertainment, Winter visited the hospital after the previous day's show and was diagnosed with cold and flu-like symptoms.

The agency stated that she was "advised to rest sufficiently, making it difficult for her to join the sound-check event and the concert," asking for fans' understanding as the decision was made with her health as the top priority.

Meanwhile, aespa released the special digital single SYNK : aeXIS LINE on November 17, featuring the members' solo tracks.