Inconsistent Timeline Render Bar

[Jbelz]

Premiere 13.1.4

18 Core iMac Pro

128 GB Ram

Media is on Fiber attached SAN with 2500 MB/s Up & 2800 MB/s Down

I have a project, shot on Alexa where all of my media matches. It was shot 3840x2160 ProRes 4444. When I bring this footage into my project and string it out onto a timeline, after disabling master clip effects, the majority of this footage shows no render bar, but a few clips show a yellow bar.

Why would some clips, but not others have the yellow bar if the footage matches exactly? Any ideas? I can't find any difference between the clips. All the default LUTS are disabled and there are zero effects on them. Nothing is scaled and no speed changes.

Thoughts?

[Guest]

Use DogEars to determine whether you're dropping frames or not: https://www.dellemc.com/resources/en-us/asset/white-papers/products/storage/h17334-wp-isilon-adobe-p...

If you're not dropping frames and the FramePrefetchLatency is fine, don't worry about the color of the indicator bar. 

[Jbelz]

Interesting, never seen this before. What is odd is that the Premiere dropped frame indicator will show dropped frames when DogEars does not. Any idea why that might be?

[Guest]

Sounds like a bug. Can you take a screen recording of that behavior?

[Kevin-Monahan]

Dog Ears is an engineering tool, which is not meant to be accessed by users. I would inspect the clips a little more carefully regarding frame size, frame rate, color space, fields, and other engineering details. Something may have switched on or off during the shoot. Where there is an Alexa, there are often camera assistants—some of whom make changes w/o telling the DP. 

Let us know if anything is different about the clips. Also let us know if the clips have performance issues in comparison with the other clips. Inspecting the clips with Media Info in Tree View can often uncover anomalies. 

[Jbelz]

You are correct. They did switch to 4444 XQ for a couple of shots which creates the Yellow Render bar. Problem solved. Thanks!

[MyerPj]

Wow! Great call Kevin!