This article is part of the Source-Connect User Guides. This guide is also applicable for any issues with the Source-Connect I/O plugin in Source-Connect 4.

The main issue with Source-Connect I/O may be additional latency. To mitigate latency between Source-Connect and your DAW try setting your plugin buffers and DAW host processing buffers to the lowest possible setting. 

For example in Pro Tools open Playback Engine settings and lower the Host Processing buffer to 256 or lower. Source-Connect I/O is a slim-line plugin and should not incur much additional CPU usage.

Another issue may be that you are not receiving audio from Source-Connect to I/O on macOS. To resolve this make sure that Source-Connect and your DAW launch with the same sample-rate; you may also delete the Audio Midi preferences and restart your computer.

Inserting Source-Connect AAX I/O on a Pro Tools track crashes Pro Tools

If Pro Tools is crashing when inserting the Source-Connect AAX I/O plugin into an aux channel, and you have followed the steps above to no avail, make sure there are no Mac security or OS updates pending. If there, please install the updates and try again.

Feedback on Pro Tools with Apogee + Maestro and Source-Connect I/O in macOS Mojave

When using an Apogee interface (such as the Apogee Duet and the Apogee Quartet USB) together Maestro, with Source-Connect I/O and Pro Tools, there might be feedback when turning the volume knob on while recording. This is a known issue on Mojave acknowledged by the Apogee support team.To resolve it, try to uninstall the Maestro and install the Apogee Control software.