iserna wrote:I have uninstalled and installed again and nothing.
The same files are working ok on davinci resolve on mac.
I expect you're running Windows 11 as well? I don't think Windows 11 is officially supported by Resolve so you're running a bit of a risk using it.
Check if you have a Windows restore point from a couple of days ago. If you can roll back to an older version, before an update that likely happened early today or late yesterday, it will likely work again.
As you mentioned that you have a working Mac install, you could import the video into Resolve on Mac, then Deliver it to a format that includes Linear PCM audio. Probably best to use a high quality intermediate format like DNxHR or ProRes, to avoid adding more compression to the source. Then import that file into Resolve on Windows. If you don't want to export the whole video, you could Deliver the audio only.
As a general workaround for people who don't have a Mac available: you could use third-party software to convert your video's audio to WAV then import that separately into Resolve. You can use Shutter Encoder to do that:
https://www.shutterencoder.com/en/