Why I am seeing this message?

Why I am seeing this message:
Any modification done here will not impact the currently loaded timeline as they are being overridden by timeline settings.



This project was created in Resolve 19 and I don't see that message in Resolve 19 but only in Resolve 20.

I need to change the color space for this project, so any idea how to fix that?

In the timeline settings of your currently open timeline, you have unchecked “Use Project Settings”.
The project settings now have no effect on this timeline.
You must make the changes in the Timeline Settings dialog.
To change the color space:
Right-click on the timeline > Timelines > Timeline Settings... > Color tab

You can still make changes for the project in general, but it will not affect the timelines that do not “Use Project Settings”.

In the timeline settings of your currently open timeline, you have unchecked “Use Project Settings”.
The project settings now have no effect on this timeline.
You must make the changes in the Timeline Settings dialog.
To change the color space:
Right-click on the timeline > Timelines > Timeline Settings... > Color tab

You can still make changes for the project in general, but it will not affect the timelines that do not “Use Project Settings”.

THank you , Christoph .. that info was helpful.