Severe random HP filter acts. A bug?

[Wojtek Stecyszyn]

This is wierd...
Once in a while Cakewalk will crank up HP filter in Pro Channel EQ. At the beginning I thought that I was doing that by mistake, but after all this time I observe it again and again and I'm pretty sure now that it happens not form my intention. The HP filter lands so high that the track looses all the low end, sometimes so high that it gets inaudible. Im mixing like always and once in a while I will realise that one track (I'm not working currently on) somewhere in the mix is gone - then when checking on it I see the HP filter is busted. What is happening? Am I doing something wrong or is it a genuine bug? Do you have similar issue?

[David Baay]

I have HPF enabled on a lot of projects and have never seen/heard that. Can't think offhand what action might cause it either.

[reginaldStjohn]

Automation? Check your automation lanes for a node or envelope

[Wojtek Stecyszyn]

34 minutes ago, reginaldStjohn said:

Automation? Check your automation lanes for a node or envelope

Nope.

This issue occurs only on HP filters that are not automated (no HPF envelope). HPF's with automation envelopes stay exactly where I set them.

Edited March 14, 2023 by Wojtek Stecyszyn

[reginaldStjohn]

Have you ever "midi learned" or controlled the prochannel EQ with a midi controller? It could be a CC event that is causing it?

[Wojtek Stecyszyn]

12 hours ago, reginaldStjohn said:

Have you ever "midi learned" or controlled the prochannel EQ with a midi controller? It could be a CC event that is causing it?

I have no midi controllers in my little studio.