It looks like since v1.5.11 HPF does not work when insert is enabled on channel on our SQ5. As soon as we disable insert filter works correctly.
Perhaps there is a workaround to get them both work together?
We’ve not been able to reproduce that here – could you please contact us by submitting a ticket via support.allen-heath.com so we can look into this with you?
I just did some additional testing and now it appears to work correctly. Yesterday on the other hand I moved HPF all the way right and left and switched it completely off and on again but nothing helped.
I updated SQ software on Friday. Perhaps something was just stuck and some scene changes or something else undid the issue. I will do some more tests and report back in a week or so.
Thanks!