Audacity only creates another empty track when i hit record

[parkcitymedia]

for context:
Audacity version 2.2.1 (Ubuntu Bionic Official Release)
Ubuntu 18.04 LTS, XFCE desktop

I'm trying to make use of the overdubbing, and wish to record a second track below a first pre-recorded track. i hit the record button, record some test audio, and then stop the recording. when i hit the record button again, a new track does appear - Audacity dosen't record anything to it though. i had trouble finding an issue like this in the forum, so let me know if it's a duplicate!

when running through the terminal, i see this message appear consistently when i attempt to record additional tracks:

Code: Select all

Expression 'err' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 3355
Expression 'ContinuePoll( self, StreamDirection_In, &pollTimeout, &pollCapture )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 3896
Expression 'PaAlsaStream_WaitForFrames( stream, &framesAvail, &xrun )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 4274

all help appreciated! thanks in advance

[steve]

What are you recording from?
What are your settings in the device toolbar?
Ensure that "Software Playthrough" (in the Transport menu) is off (not selected)