Since some time MA starts playing music after a TTS announcement even if the player was idle before. But MA should only continue play music if the player was playing before the TTS announcement. Otherwise the players should be stay idle.
I use for TTS announcements the action tts.cloud_say and Pre-announce in the Airplay player settings is activated. It seems this behaviour happens only when tracks are in the queue.
HA Version: 2025.7.1
MA Server Version: 2.5.5
Player Provider: Airplay