Echo Dot ssml break tag not working correctly

Hi,

Echo Dot is playing break tags fastly than other devices.

For example, this ssml:

<speak><audio src=\"https://statics.ccma.cat/multimedia/mp3/4/7/1608021378374.mp3\" />  <break time=\"2s\"/> <audio src=\"https://statics.ccma.cat/multimedia/mp3/4/0/1605260998304.mp3\" />,  <break time=\"2s\"/> <audio src=\"https://statics.ccma.cat/multimedia/mp3/4/6/1605265818064.mp3\" /> <break time=\"2s\"/>  <audio src=\"https://statics.ccma.cat/multimedia/mp3/1/3/1605167426431.mp3\" /></speak>

Echo Spot are doing breaks two second long, but Echo Dot are doing breaks in half time, 1 second long.

I record an audio file: https://drive.google.com/file/d/1edxTvuWbjSGVKKrl4miG43GpGizhPPfn/view?usp=sharing

EchoSpotEchoDotBreak.PNG

Any idea ?