I went through the help page on the forum and tried the two programs, with no information and nothing on the test visualizer. In the settings of Monstercat Under audio device nothing is selected and if I open it I can choose one, though it doesn't save (Audio output device not found as seen in the log). After that it just endlessly says failed to initialize audio client. I removed some of the useless repeated lines to save characters
NOTE (18:34:48.325) Monstercat-Visualizer\visualizer.ini: Refreshing skin
WARN (18:34:48.612) : Audio output device '{0.0.0.00000000}.{a117d881-9eda-4693-891a-0274c0ec808f}' not found (error 0x80070490).
WARN (18:34:48.619) : Audio output device '{0.0.0.00000000}.{a117d881-9eda-4693-891a-0274c0ec808f}' not found (error 0x80070490).
NOTE (18:34:48.624) Monstercat-Visualizer\Settings\misc\init\InitializeSkin.ini: Refreshing skin
NOTE (18:34:48.632) Monstercat-Visualizer\Song Information\Left.ini: Refreshing skin
NOTE (18:34:48.650) Monstercat-Visualizer\Song Information\Cover\Cover.ini: Refreshing skin
NOTE (18:34:48.670) Monstercat-Visualizer\visualizer.ini: Refreshing skin
WARN (18:34:48.694) : Audio output device '{0.0.0.00000000}.{a117d881-9eda-4693-891a-0274c0ec808f}' not found (error 0x80070490).
WARN (18:34:48.701) : Audio output device '{0.0.0.00000000}.{a117d881-9eda-4693-891a-0274c0ec808f}' not found (error 0x80070490).
WARN (18:35:07.375) : Audio output device '{0.0.0.00000000}.{a117d881-9eda-4693-891a-0274c0ec808f}' not found (error 0x80070490).
WARN (18:35:07.391) : Audio output device '{0.0.0.00000000}.{a117d881-9eda-4693-891a-0274c0ec808f}' not found (error 0x80070490).
NOTE (18:35:07.400) Monstercat-Visualizer\Settings\misc\devicelist\GetAudioDevices.ini: Refreshing skin
WARN (18:35:07.437) : Failed to initialize audio client.
WARN (18:35:07.474) : Failed to initialize audio client.
WARN (18:35:07.482) : Audio output device '{0.0.0.00000000}.{a117d881-9eda-4693-891a-0274c0ec808f}' not found (error 0x80070490).
WARN (18:35:07.482) : Audio output device '{0.0.0.00000000}.{a117d881-9eda-4693-891a-0274c0ec808f}' not found (error 0x80070490).
WARN (18:35:09.374) : Audio output device '{0.0.0.00000000}.{a117d881-9eda-4693-891a-0274c0ec808f}' not found (error 0x80070490).
NOTE (18:35:09.388) Monstercat-Visualizer\visualizer.ini: Refreshing skin
WARN (18:35:09.443) : Failed to initialize audio client.
WARN (18:35:09.484) : Failed to initialize audio client.
NOTE (18:35:09.491) Monstercat-Visualizer\Settings\misc\init\InitializeSkin.ini: Refreshing skin
NOTE (18:35:09.499) Monstercat-Visualizer\Settings\general.ini: Refreshing skin
WARN (18:35:09.536) : Failed to initialize audio client.
WARN (18:35:09.651) : Failed to initialize audio client.
NOTE (18:35:09.657) Monstercat-Visualizer\visualizer.ini: Refreshing skin
WARN (18:35:09.710) : Failed to initialize audio client.
WARN (18:35:09.750) : Failed to initialize audio client.
NOTE (18:35:09.757) Monstercat-Visualizer\Settings\misc\init\InitializeSkin.ini: Refreshing skin
WARN (18:35:09.800) : Failed to initialize audio client.
WARN (18:35:10.776) : Failed to initialize audio client.
NOTE (18:35:10.781) Monstercat-Visualizer\Settings\misc\devicelist\GetAudioDevices.ini: Refreshing skin
WARN (18:35:10.816) : Failed to initialize audio client.
WARN (18:35:11.620) : Failed to initialize audio client.
NOTE (18:35:11.627) Monstercat-Visualizer\visualizer.ini: Refreshing skin
WARN (18:35:11.685) : Failed to initialize audio client.
WARN (18:35:11.731) : Failed to initialize audio client.
NOTE (18:35:11.738) Monstercat-Visualizer\Settings\misc\init\InitializeSkin.ini: Refreshing skin
NOTE (18:35:11.746) Monstercat-Visualizer\visualizer.ini: Refreshing skin
WARN (18:35:11.803) : Failed to initialize audio client.
WARN (18:35:11.848) : Failed to initialize audio client.
NOTE (18:35:11.855) Monstercat-Visualizer\Settings\misc\init\InitializeSkin.ini: Refreshing skin
NOTE (18:35:11.862) Monstercat-Visualizer\Settings\general.ini: Refreshing skin
WARN (18:35:11.929) : Failed to initialize audio client.
WARN (18:35:12.049) : Failed to initialize audio client.
NOTE (18:35:12.055) Monstercat-Visualizer\visualizer.ini: Refreshing skin
WARN (18:35:12.110) : Failed to initialize audio client.
WARN (18:35:12.150) : Failed to initialize audio client.
NOTE (18:35:12.157) Monstercat-Visualizer\Settings\misc\init\InitializeSkin.ini: Refreshing skin
NOTE (18:35:12.164) Monstercat-Visualizer\visualizer.ini: Refreshing skin
WARN (18:35:12.219) : Failed to initialize audio client.
WARN (18:35:12.266) : Failed to initialize audio client.
NOTE (18:35:12.273) Monstercat-Visualizer\Settings\misc\init\InitializeSkin.ini: Refreshing skin
NOTE (18:35:12.283) Monstercat-Visualizer\Settings\misc\devicelist\GetAudioDevices.ini: Refreshing skin
WARN (18:35:12.323) : Failed to initialize audio client.
WARN (18:35:13.081) : Failed to initialize audio client.
NOTE (18:35:13.087) Monstercat-Visualizer\visualizer.ini: Refreshing skin
WARN (18:35:13.138) : Failed to initialize audio client.
WARN (18:35:13.179) : Failed to initialize audio client.
NOTE (18:35:13.186) Monstercat-Visualizer\Settings\misc\init\InitializeSkin.ini: Refreshing skin
NOTE (18:35:13.193) Monstercat-Visualizer\visualizer.ini: Refreshing skin
WARN (18:35:13.250) : Failed to initialize audio client.
WARN (18:35:13.295) : Failed to initialize audio client.
NOTE (18:35:13.302) Monstercat-Visualizer\Settings\misc\init\InitializeSkin.ini: Refreshing skin
NOTE (18:35:13.309) Monstercat-Visualizer\Settings\general.ini: Refreshing skin
WARN (18:35:13.348) : Failed to initialize audio client.
WARN (18:35:13.466) : Failed to initialize audio client.
NOTE (18:35:13.472) Monstercat-Visualizer\visualizer.ini: Refreshing skin
WARN (18:35:13.528) : Failed to initialize audio client.
WARN (18:35:13.570) : Failed to initialize audio client.
NOTE (18:35:13.577) Monstercat-Visualizer\Settings\misc\init\InitializeSkin.ini: Refreshing skin
NOTE (18:35:13.585) Monstercat-Visualizer\visualizer.ini: Refreshing skin
WARN (18:35:13.642) : Failed to initialize audio client.
WARN (18:35:13.683) : Failed to initialize audio client.
NOTE (18:35:13.689) Monstercat-Visualizer\Settings\misc\init\InitializeSkin.ini: Refreshing skin
WARN (18:35:13.734) : Failed to initialize audio client.
WARN (18:35:13.894) : Failed to initialize audio client.
WARN (18:34:48.612) : Audio output device '{0.0.0.00000000}.{a117d881-9eda-4693-891a-0274c0ec808f}' not found (error 0x80070490).
WARN (18:34:48.619) : Audio output device '{0.0.0.00000000}.{a117d881-9eda-4693-891a-0274c0ec808f}' not found (error 0x80070490).
NOTE (18:34:48.624) Monstercat-Visualizer\Settings\misc\init\InitializeSkin.ini: Refreshing skin
NOTE (18:34:48.632) Monstercat-Visualizer\Song Information\Left.ini: Refreshing skin
NOTE (18:34:48.650) Monstercat-Visualizer\Song Information\Cover\Cover.ini: Refreshing skin
NOTE (18:34:48.670) Monstercat-Visualizer\visualizer.ini: Refreshing skin
WARN (18:34:48.694) : Audio output device '{0.0.0.00000000}.{a117d881-9eda-4693-891a-0274c0ec808f}' not found (error 0x80070490).
WARN (18:34:48.701) : Audio output device '{0.0.0.00000000}.{a117d881-9eda-4693-891a-0274c0ec808f}' not found (error 0x80070490).
WARN (18:35:07.375) : Audio output device '{0.0.0.00000000}.{a117d881-9eda-4693-891a-0274c0ec808f}' not found (error 0x80070490).
WARN (18:35:07.391) : Audio output device '{0.0.0.00000000}.{a117d881-9eda-4693-891a-0274c0ec808f}' not found (error 0x80070490).
NOTE (18:35:07.400) Monstercat-Visualizer\Settings\misc\devicelist\GetAudioDevices.ini: Refreshing skin
WARN (18:35:07.437) : Failed to initialize audio client.
WARN (18:35:07.474) : Failed to initialize audio client.
WARN (18:35:07.482) : Audio output device '{0.0.0.00000000}.{a117d881-9eda-4693-891a-0274c0ec808f}' not found (error 0x80070490).
WARN (18:35:07.482) : Audio output device '{0.0.0.00000000}.{a117d881-9eda-4693-891a-0274c0ec808f}' not found (error 0x80070490).
WARN (18:35:09.374) : Audio output device '{0.0.0.00000000}.{a117d881-9eda-4693-891a-0274c0ec808f}' not found (error 0x80070490).
NOTE (18:35:09.388) Monstercat-Visualizer\visualizer.ini: Refreshing skin
WARN (18:35:09.443) : Failed to initialize audio client.
WARN (18:35:09.484) : Failed to initialize audio client.
NOTE (18:35:09.491) Monstercat-Visualizer\Settings\misc\init\InitializeSkin.ini: Refreshing skin
NOTE (18:35:09.499) Monstercat-Visualizer\Settings\general.ini: Refreshing skin
WARN (18:35:09.536) : Failed to initialize audio client.
WARN (18:35:09.651) : Failed to initialize audio client.
NOTE (18:35:09.657) Monstercat-Visualizer\visualizer.ini: Refreshing skin
WARN (18:35:09.710) : Failed to initialize audio client.
WARN (18:35:09.750) : Failed to initialize audio client.
NOTE (18:35:09.757) Monstercat-Visualizer\Settings\misc\init\InitializeSkin.ini: Refreshing skin
WARN (18:35:09.800) : Failed to initialize audio client.
WARN (18:35:10.776) : Failed to initialize audio client.
NOTE (18:35:10.781) Monstercat-Visualizer\Settings\misc\devicelist\GetAudioDevices.ini: Refreshing skin
WARN (18:35:10.816) : Failed to initialize audio client.
WARN (18:35:11.620) : Failed to initialize audio client.
NOTE (18:35:11.627) Monstercat-Visualizer\visualizer.ini: Refreshing skin
WARN (18:35:11.685) : Failed to initialize audio client.
WARN (18:35:11.731) : Failed to initialize audio client.
NOTE (18:35:11.738) Monstercat-Visualizer\Settings\misc\init\InitializeSkin.ini: Refreshing skin
NOTE (18:35:11.746) Monstercat-Visualizer\visualizer.ini: Refreshing skin
WARN (18:35:11.803) : Failed to initialize audio client.
WARN (18:35:11.848) : Failed to initialize audio client.
NOTE (18:35:11.855) Monstercat-Visualizer\Settings\misc\init\InitializeSkin.ini: Refreshing skin
NOTE (18:35:11.862) Monstercat-Visualizer\Settings\general.ini: Refreshing skin
WARN (18:35:11.929) : Failed to initialize audio client.
WARN (18:35:12.049) : Failed to initialize audio client.
NOTE (18:35:12.055) Monstercat-Visualizer\visualizer.ini: Refreshing skin
WARN (18:35:12.110) : Failed to initialize audio client.
WARN (18:35:12.150) : Failed to initialize audio client.
NOTE (18:35:12.157) Monstercat-Visualizer\Settings\misc\init\InitializeSkin.ini: Refreshing skin
NOTE (18:35:12.164) Monstercat-Visualizer\visualizer.ini: Refreshing skin
WARN (18:35:12.219) : Failed to initialize audio client.
WARN (18:35:12.266) : Failed to initialize audio client.
NOTE (18:35:12.273) Monstercat-Visualizer\Settings\misc\init\InitializeSkin.ini: Refreshing skin
NOTE (18:35:12.283) Monstercat-Visualizer\Settings\misc\devicelist\GetAudioDevices.ini: Refreshing skin
WARN (18:35:12.323) : Failed to initialize audio client.
WARN (18:35:13.081) : Failed to initialize audio client.
NOTE (18:35:13.087) Monstercat-Visualizer\visualizer.ini: Refreshing skin
WARN (18:35:13.138) : Failed to initialize audio client.
WARN (18:35:13.179) : Failed to initialize audio client.
NOTE (18:35:13.186) Monstercat-Visualizer\Settings\misc\init\InitializeSkin.ini: Refreshing skin
NOTE (18:35:13.193) Monstercat-Visualizer\visualizer.ini: Refreshing skin
WARN (18:35:13.250) : Failed to initialize audio client.
WARN (18:35:13.295) : Failed to initialize audio client.
NOTE (18:35:13.302) Monstercat-Visualizer\Settings\misc\init\InitializeSkin.ini: Refreshing skin
NOTE (18:35:13.309) Monstercat-Visualizer\Settings\general.ini: Refreshing skin
WARN (18:35:13.348) : Failed to initialize audio client.
WARN (18:35:13.466) : Failed to initialize audio client.
NOTE (18:35:13.472) Monstercat-Visualizer\visualizer.ini: Refreshing skin
WARN (18:35:13.528) : Failed to initialize audio client.
WARN (18:35:13.570) : Failed to initialize audio client.
NOTE (18:35:13.577) Monstercat-Visualizer\Settings\misc\init\InitializeSkin.ini: Refreshing skin
NOTE (18:35:13.585) Monstercat-Visualizer\visualizer.ini: Refreshing skin
WARN (18:35:13.642) : Failed to initialize audio client.
WARN (18:35:13.683) : Failed to initialize audio client.
NOTE (18:35:13.689) Monstercat-Visualizer\Settings\misc\init\InitializeSkin.ini: Refreshing skin
WARN (18:35:13.734) : Failed to initialize audio client.
WARN (18:35:13.894) : Failed to initialize audio client.