[flandybob]

Originally Posted by albee1952

I have 2 concerns:
#1-is this the interface you have?
https://www.zzounds.com/item--UADAPP...UO?siid=289836
If so, it would seem a royal PITA to insert hardware with only 2 IO.

#2-is the UA mixer software causing the issue?

Hi Albee, nope I'm using an original rack Apollo fitted with a thunderbolt 3 card, which is also linked to an Apollo Twin MkII thunderbolt 2.

Issue is the same wether I have only the rack Apollo connected or the Apollo Twin also connected.

UA mixer is muted so it’s not coming from there either

Not related to the topic, but while it's a hassle to use hardware insert with only a twin, it's actually not that hard once you get a handle on how to configure the I/O in the UAD console app.