FabFilter User Forum
Pro-MB does not render correctly in PT Audio Suite
Interesting issue. Would you be able to send over a small video to info@fabfilter.com so we can try and reproduce?
Ralph (FabFilter)
— Sep 10, 2026
It randomly fixed itself today, without me updating anything. I did not change anything as far as I can tell. I will still send you a video later, and text you the OS / version / CPU details
s Krupke
— Sep 10, 2026
Hi, I'm experiencing a strange issue in Pro Tools 2026.4.1.
When I listen to Pro-MB on an insert, or listen through the Audio Suite, everything is fine. When I render it from the Audio Suite into the clip, however, it does not render the dynamics I set. It does render something, but it rather looks like it might render the ringing from the crossovers, but that's it.
Stranger thing even: this happens only in mono-mode/individual-files/clip-by-bip settings. As soon as I select 'entire selection' or 'continuous file' it works normally.
Pro-MB is the newest version, I'm on a MacBook Pro with Tahoe 26.5.1.
I remember this bug showing up on Windows ages ago, but I can't remember the fix.
USE IN PLAYLIST is also on, playlist also selected and not clip list.
Does anyone have a solution? Is this more of a Pro Tools Bug, than a Fabfilter one?