Using version 2.4.2 on Windows 10 with Focusrite Scarlett 2i2 interface. With the prior Audacity version, overbub worked fine. With the new version, I could play back or record when the overdub function was off. With the function turned on, I got the 9999 error message. I’ve been messing with settings on both Audacity & Scarlett. Now I can’t get it to play or record. Can you help me with the proper settings? Thanks, Patrick Ryan
Try “Transport menu > Rescan Audio Devices”, then in the Device Toolbar set the “host” to MME and select the recording and playback devices that you wish to use.