Motion blur not working (merge node)

I'm not seeing any changes when I use motion blur in the merge node. I'm using the Fusion page in Resolve, and for what it's worth, I'm still using 17.2.2. That said, I checked the change notes and didn't find anything about motion blur in later versions.

Can you share the setup? Because 'it's not working' isn't enough to troubleshoot. Most obvious question: are you animating the merge itself so there is something to blur?
Second: there is a setting that allows you to turn off the motion blur globally, maybe that setting is active?

Nothing on the merge node is animated. That seems like a weird and unintuitive thing to have to do for that feature to be engaged, especially since the user manual doesn't mention anything like that. The motion in this case that I want to add blur to is coming from a planar transform. Is that just not how it works? And if so, what do I need to animate to get motion blur to be possible?

Nothing on the merge node is animated. That seems like a weird and unintuitive thing to have to do for that feature to be engaged, especially since the user manual doesn't mention anything like that. The motion in this case that I want to add blur to is coming from a planar transform. Is that just not how it works? And if so, what do I need to animate to get motion blur to be possible?

Generally You Engage Motion Blur In The Node You Are Animating. Either It Is a transform, merge, or any other. Check the settings of the node with the animation to enable it and the fusion preview that it shows the motion blur in the viewer.

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