BUG: Changing subtitle length resets size of Fusion comps!

This one took me a while to track down, prompted by this thread - Fusion elements resize unexpectedly

It has been around as long as I can remember and persists in 17.0.39.

Video demo:

https://streamable.com/cjwtj8

To reproduce:

Create a project, with a resolution of 1920x1080.

Make a timeline inside that project with a resolution of 1080x1080*.

Create a Fusion composition in that timeline, and arrange some objects in the comp to fit your 1:1 canvas.





Change the Project setting for Subtitle max length.



Result:





The linebreak length changes for subtitles. Expected behaviour.

Fusion compositions have their resolution reset to that of the Project's default timeline settings in all timelines. Your comps which have been laid out for a different aspect ratio are broken. Not expected.

Workaround:

You can reset the comps back to their proper resolution by cutting and pasting them back into position. Or you can enter the resolution values manually in console like so:

Code: Select all

comp:SetPrefs("Comp.FrameFormat.Width",1080);
comp:SetPrefs("Comp.FrameFormat.Height",1080);

Proposed solution:

Please ... don't do that? Also, BMD, please give some more consideration to how subtitles are implemented [1][2][3]. Surely since timelines can have different resolutions and aspect ratios, it makes sense that they can have different subtitle lengths, too? It should not be a value set at the project level, but per-timeline.

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* Why do this? For creating multiple copies of the same timeline in different aspect ratios for various social media platforms.

Update: I believe this is actually connected to how the Project Settings window handles changes.

It seems that changing anything at all (eg. target loudness indicator for Fairlight), re-applies the master project resolution to all fusion comps (and adjustment clips) when you save the settings.

Can someone please confirm this behaviour?

This appears to be fixed in 17.1.

Thanks!

Update: it still seems to be affecting Adjustment Clips, for some reason. Usually opening the Adjustment Clip in Fusion is enough to trigger it to reset to the correct size automatically, which is the workaround I've had to use for now.