FabFilter User Forum

Pro-MB does not render correctly in PT Audio Suite

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?

s Krupke

Hi,

Interesting issue. Would you be able to send over a small video to info@fabfilter.com so we can try and reproduce?

Ralph (FabFilter)

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

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