Nested Timeline Scaling Bug

Hi guys, when using all versions of 17 there seems to be an issue with scaling resolution.

I have a project based around 6K clips sitting in Nested timelines with scaling applied. With Resolve 16 this preserved the original resolution (ie. when you applied 2x scaling to the nested clip in a 1080P timeline it would read the original 6K res).

However in 17 this no longer works, it seems to only be scaling on top of a 1080 resolution so losing quality.
I've tried changing the resolution of the Nested timelines to match the source material, input and output settings and whether the scaling is applied at Edit, Input and Node settings to no avail.

This is based on an exact workflow/timeline that worked perfectly in 16 btw.

Thanks
Dan

I've tested this in 16.2.7 using a title generator in an 8K timeline, rendered out to a TIFF sequence, putting this back into the 8K timeline, nesting this timeline inside an HD timeline, and then zooming in 4x, and comparing it against the 8K TIFF sequence put into the HD timeline directly, set to Crop with no resizing.

There was clear degradation with the nested timeline, indicating that it is only scaling from 1080 rather than the original 8K, i.e. there is no difference in behaviour with 17.

In all versions of Resolve since 12 (maybe before, but 12 is where I started), Compound Clips, Multicam Clips and Nests act as picture frames, with the original clips acting as the picture.

If you scale the frame, you are not accessing the resolution of the original. You would need to apply that scaling directly to the original.

It sounds like 17 continues that behavior.

In all versions of Resolve since 12 (maybe before, but 12 is where I started), Compound Clips, Multicam Clips and Nests act as picture frames, with the original clips acting as the picture.

If you scale the frame, you are not accessing the resolution of the original. You would need to apply that scaling directly to the original.

It sounds like 17 continues that behavior.

Actually, I don't think this is true anymore in v17. It looks like its is scaling graphics (incorrectly), even on nested Timelines. Regardless of Project/Timeline and now clips settings.
Which, it shouldn't.

That or it's a bug.

Yeah, there is a problem with images.