A digit element not recognize the DTMF when the flow pass through it repeatedly

Hello.

I have developed the next flow. The digits element named "get_DTMF" reproduced a TTS audio (with "barge in" activated).

The application, iterates several times, depending of the results of a database query, until reach the limit of messages that needs to reproduce.

The behavior is strange, because if the dtmf is captured, only when the tts audio is interrupted, but if i wait that the tts has finished, it is not captured, the digits element marks a "no input".

After that, if a dtmf is captured, for example 1, in the next iteration, the same dtmf is not recognized, you need to change the election and choose another dtmf.

Another data, if the "barge in" is not activated, everything it works without problem.

What it is happening?

Thanks in advance.

Regards.

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