Why did the US aircraft carrier escape from the military exercise in the Taiwan Strait? What is the specific situation?

According to a message released by the US Pacific Fleet on August 13, the US Navy's aircraft carrier USS Ronald Reagan, which had been lingering in the East China Sea, has sailed to the Philippine Sea.

On August 1, the USS Ronald Reagan briefly stopped at Yokosuka Port in Japan. On August 2, it left the port to carry out a mission and then entered the East China Sea again.
The China Maritime Safety Administration previously issued a navigation notice stating that live-fire exercises would be conducted in the Huangdayang waters of Zhoushan from August 11 to 13. On August 13, the Eastern Theater Command announced a training news. The news said that the Eastern Theater Command of the People's Liberation Army of China systematically dispatched troops from multiple services and directions, and continuously organized actual combat exercises in the Taiwan Strait and the north and south ends to further test and enhance the joint combat capabilities of multiple services. Some analysts believe that sea sealing live-fire shooting is an important part of the Taiwan Strait exercise.