uuid_record not recording audio on second record command

I have a setup where I open a connection to freeswitch through the ESL and start exchanging commands.

In one specific scenario I want for freeswitch to call me and record a message. So I call a phone number with sofia and park the call

originate {set some private variables and origination_caller_id_number}sofia/gateway// &park()

During the call I play a few messages

uuid_broadcast playback::

And listen to events waiting specific for DTMF tones so I can take action. Play another message or start recording

To stop a playback and start recording

uuid_break uuid_record start

I also playback the recorded file to the user using the same playback command

Now the issue, the first time a message is recorded it works fine, I can listen to it. After I record a new message on the same call nothing is recorded in the file. I can download the file to listen to it directly and still no sound. I see that the file is created and it's size is compatible with the length recorded but even looking with Audacity there is no audio in it.

What can be causing this and does anyone have an idea on how to fix it?

Thanks for the help!