Elgato hd60 audio not coming through?

got a project in the wild thats been running for a few years that the client is now asking for a small edit which is turning into a headache. Have a elgato hd60 that currently is being used to capture another computer and display the output within touch for presentations and such. Blackmagic didn’t work for this due to crestron hdmi extenders doing “something” to the signal and made it unseeable. The project now needs to be able to get the audio from the capture card. while the elgato game capture software is able see get the audio and touch is able to see a line in with a audio device in chop im not able to receive any of the audio. anyone know if there is a trick to getting these lowly capture cards to work with audio? trying not to replace if i can help it.