pipeline_raw_http例程只能执行一次录音怎么解决？

Hi,请教一下

本人使用examplesrecorderpipeline_raw_http例程，想实现多次录音上传的操作，实际测试发现只有第一次按下REC键可以录音并上传http服务器，松开rec键后上传结束；第二次及以后按下rec键后，element自动abord, 各位有解决这个问题的吗？谢谢！

使用硬件   ESP32-LyraT-V4.3

ADF版本：App version:      v2.3-228-g7b844d5-dirty

IDF版本：ESP-IDF:          v4.1-beta2-141-g84b5178-dirty

log：

I (15211) REC_RAW_HTTP: [ 2 ] Start codec chip

E (15211) gpio: gpio_install_isr_service(438): GPIO isr service already installed

I (15231) REC_RAW_HTTP: [3.0] Create audio pipeline for recording

I (15231) REC_RAW_HTTP: [3.1] Create http stream to post data to server

I (15241) REC_RAW_HTTP: [3.2] Create i2s stream to read audio data from codec chip

I (15281) REC_RAW_HTTP: [3.3] Register all elements to audio pipeline

I (15281) REC_RAW_HTTP: [3.4] Link it together [codec_chip]-->i2s_stream->http_stream-->[http_server]

W (15311) PERIPH_TOUCH: _touch_init

I (15351) REC_RAW_HTTP: [ 4 ] Press [Rec] button to record, Press [Mode] to exit

I (26291) REC_RAW_HTTP: [ * ] [Rec] input key event, resuming pipeline ... //第一次录音上传ok

Total bytes written: 72704

Total bytes written: 73728

I (27481) REC_RAW_HTTP: [ + ] HTTP client HTTP_STREAM_POST_REQUEST, write end chunked marker

I (27531) REC_RAW_HTTP: [ + ] HTTP client HTTP_STREAM_FINISH_REQUEST

W (27551) HTTP_CLIENT: esp_transport_read returned:-1 and errno:128

W (27551) AUDIO_PIPELINE: Without stop, st:1

W (27551) AUDIO_PIPELINE: Without wait stop, st:1

I (56951) REC_RAW_HTTP: [ * ] [Rec] input key event, resuming pipeline ...  //第二次

I (56951) REC_RAW_HTTP: [ + ] HTTP client HTTP_STREAM_PRE_REQUEST, lenght=0

W (56961) AUDIO_ELEMENT: OUT-[i2s] AEL_IO_ABORT

W (56961) AUDIO_ELEMENT: OUT-[i2s] AEL_IO_ABORT

W (56961) AUDIO_ELEMENT: OUT-[i2s] AEL_IO_ABORT

Total bytes written: 8192

W (57221) AUDIO_ELEMENT: IN-[http] AEL_IO_ABORT

I (57221) REC_RAW_HTTP: [ + ] HTTP client HTTP_STREAM_POST_REQUEST, write end chunked marker

I (57281) REC_RAW_HTTP: [ + ] HTTP client HTTP_STREAM_FINISH_REQUEST

W (57301) HTTP_CLIENT: esp_transport_read returned:-1 and errno:128

I (58461) REC_RAW_HTTP: [ * ] [Rec] key released, stop pipeline ...

E (58461) AUDIO_ELEMENT: [i2s] Element already stopped

E (58461) AUDIO_ELEMENT: [http] Element already stopped

W (58461) AUDIO_PIPELINE: Without stop, st:1

W (58471) AUDIO_PIPELINE: Without wait stop, st:1

I (77841) REC_RAW_HTTP: [ * ] [Rec] input key event, resuming pipeline ...

Total bytes written: 6144

W (77901) AUDIO_ELEMENT: IN-[http] AEL_IO_ABORT

I (77901) REC_RAW_HTTP: [ + ] HTTP client HTTP_STREAM_POST_REQUEST, write end chunked marker

I (78031) REC_RAW_HTTP: [ + ] HTTP client HTTP_STREAM_FINISH_REQUEST

W (78051) HTTP_CLIENT: esp_transport_read returned:-1 and errno:128

W (78051) AUDIO_ELEMENT: OUT-[i2s] AEL_IO_ABORT

W (78051) AUDIO_ELEMENT: OUT-[i2s] AEL_IO_ABORT

W (78051) AUDIO_ELEMENT: OUT-[i2s] AEL_IO_ABORT

W (78061) AUDIO_ELEMENT: OUT-[i2s] AEL_IO_ABORT

I (80291) REC_RAW_HTTP: [ * ] [Rec] key released, stop pipeline ...

E (80291) AUDIO_ELEMENT: [i2s] Element already stopped

E (80291) AUDIO_ELEMENT: [http] Element already stopped

W (80291) AUDIO_PIPELINE: Without stop, st:1

W (80301) AUDIO_PIPELINE: Without wait stop, st:1