Chime still sounding for motion even though the setting is off

I have one ring doorbell and one chime, the chime is set to sound when the doorbell is pressed, but off for motion detection. Out of the blue the chime has started sounding when motion is detected, and I’ve checked the app and the setting is still off for motion detection. Does anyone know why this has started happening and how to fix it please? I’ve been into the app and turned the setting on/off several times but it’s not fixed it.