Hello Line6,
I am French, so i'm trying to explain my problem in English...
I just bought the Helix, test it, and i can say that it's really good ! :D
But when i wire it to my Mac with USB, and Line6 app installed, every thing works fine, but about 1 minute later, the sound that output from the Mac has about 5 to 10 seconds of latency...
I check from my Mac system parameter, and the audio level output is showing that latency, so i think it's a Helix problem...
I wire my head head phones to the "Phone" output of the Helix (with USB wire still in the Mac), and i can hear that there is no more lantency in the headphones...
I installed the last updates from the Line6 Updater app (Last update that i can find on 25 february 2018), but i experienced same problem.
I check in the Line6 forum for any post that can explain that, but i didn't found any answer.
So, I post this because I don't know if i missed changing some configurations and/or parameters to avoid this latency/get a workaround...
Here are some informations :
Mac : MacOSX High Sierra 10.13.2 (17C88)
I you want some other informations, just let me know !
Hope you can help,
Thank you for your support, and see you later !