FabFilter User Forum
Pro Q4 / Pro Tools Error Message
What exactly does the error say? There seems to have been a dynamic plug-in processing issue starting with Pro Tools 2024.6, which seems to have improved with the latest 2025.10.
Ralph (FabFilter)
— Nov 26, 2025
Dear Team,
we`re using Fabfilter 4.01 on Mac Studio M2 Ultra (OS Ventura) with Pro Tools 2024.10.3 (native)
We`re getting alot of Pro Tools -9173 Error messages. Do you know how to handle that? If i remember right, there was a similar issue with Pro Q3, and the solution was "turning of dynamic plugin processing". But in in our case, our session is pretty huge and turning off dynamic plugin processing will cause to 80..90% of CPU load.
Many thanks in advance
Markus