Timeline playing in slow motion, lagging?

[SC-Agency]

It seems my Creative Cloud auto updated to include Premiere 2023 last night.

Now if I open a project I was working on yesterday in 2022, the playback on the timeline, even rendered clips appear to be in slow motion even playing at a lower resolution.I changed nothing.

Tried a new, basic project with some small JPGs as footage, same thing. So it's not related to one project.

It's not the specs of my machine, nothing changed. I have a fast ProArt Studiobook.

Is there anyway to get the playback to normal so 1 second doesn't equal 1.5 or 2 seconds of time? If I hold up a stopwatch I can confirm it is indeed this slow.

Stumped. Thanks.

[SC-Agency]

Might have solved. I did have an MME audio device error I ignored when starting up Premiere. I had never had that before.

On a hunch I went into Windows microphone privacy settings and authorized Premiere and After Effects to be able to use the mic and BOOM my timeline immediately started playing in real time speed again, 1 second = 1 second.

I hope this hack / trick / fix helps someone from pulling their hair out.

[Tom Fewchuk]

Thank you for this! I had same issue where 1 sec  =  1.5 sec. Your audio prompt made me look at the Audio Hardware section on Premiere and cos I had changed device output, it screwed something up so the sample rate was at 44100Hz instead of 48000Hz and that was what was causing it to play back slow. So I changed the device output to one that was working and fixed it up!

[Why1231]

Thanks! Helped me to figure it out. But why would that setting EVER affect the timeline?...