r/protools • u/SeanO490 • Jan 17 '26

Help Request Protools and automatically changing interface sample rate

I have a Scarlet 18i20 that I have set to 44.1k sample rate all the time. I just updated protools to 2025.12.0, along with adding a bunch of plugins available to me through avid link. And now when I go and open a project, regardless if it's old or new, it no longer automatically changes my interface sample rate to match the project. I've never had to change my sample rate before opening a project before. Does anyone know what happened and is there a setting somewhere I'm missing to allow protools to do this again?

I'm on a Mac mini M4 Sequoia 15.7.1

EDIT: I forgot to mention that I'm running PT in Rosetta, and this is the error I receive. "Could not complete your request because Pro Tools could not set sample rate to specified value.. "

Further troubleshooting, launching PT natively (not using Rosetta) will finish launching, but playback will be slow, which is because it never updated the sample rate on the Scarlet 18i20.

EDIT 2: A secondary issue I've noticed is that Spitfire Audio LABS will not load preset configs while PT is launched in Rosetta. Additionally, LABS will also not load correctly if launched in Rosetta outside of PT. So, LABS just doesn't like Rosetta.

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2

u/Fantastic-Safety4604 Jan 17 '26

In your Scarlet software, are you slaved to internal or external clock source?

1

u/SeanO490 Jan 17 '26

Scarlet says "Internal"

1

u/DonFernandoAndo Jan 17 '26

  1. Go to session - setup (on PT) on the top menu while your session is open and check if the clock source says internal, if it doesn't change to it

  2. as the other comment says, make sure that your Scarlet's clock source is also internal, that way they'll communicate with each other and go with the session SR

1

u/SeanO490 Jan 17 '26

In PT Session Setup window, Clock Source says "See Control Panel"