I had been using the TASCAM US-122L A/D interface with an older version of Audacity under Windows XP. I got a new computer with Windows 10 and installed Audacity 2.3.2. Now when I try to overdub with the 122L as the playback device I get an error message “error opening recording device/ error code 9999 unanticipated host error”. I can record the first track, but not the overdub. I can overdub if I select the Realtek speakers as the playback device, but that creates too much latency to be workable.
Tim Connor