FabFilter User Forum
External Sidechain on pro c 2, not working / and not showing
Could it be you have the plug-in header hidden? You can show/hide by clicking the small up or down arrow at the top right of the plug-in window.
Ralph (FabFilter) — Jul 9, 2025
Just tried the arrow and unfortunately still no sidechain button. This issue has only started since the two recent Logic X updates
Chris — Jul 10, 2025
Hello!
So the sidechain input button is not showing at all on Fabfilter Pro c2. And is also not receiving any signal.
On logic x’s mix view, it shows that pro c2 has been routed with an external sidechain source - showing the small arrow to the right (this is from it previously working in older versions of logic).
But now, no signal is coming through into the plugin from external sidechain inputs.
And now, there is no option for an external sidechain, usually shown in the top right hand corner in the plugin window?
It seems to work in all other fab filter plugins. Just not pro c2?
Thanks in advance!