For info :
I have been spending a lot of energy following up with Adobe Support on two issues that have killed Smart Rendering in last versions of Premiere Pro (for nearly 2 years ?) :
1. Loss of Video Preview Files (random files)
2. Use Previews tick box not working in Media Export to speed up Exports (even if you have a green line above complex renders)
Status -
Support confirmed item 1 is still being investigated as of 11th June 2024. Not fixed.
On item 2 - Support asked that I tested the 'Use Previews' function as they were under the impression there was an early fix for this in Beta Version. (There is no mention yet in any documentation that I can see)
So I performed some tests on an existing project (ignoring Text Layers Issue) with latest Beta 26.6.0.021
Select Export Media with same codec as that used for Previews - in my case ProRes 422.
Export with ProRes 422
Select in and out points on timeline
Export starts - as soon as export reaches a clip with which has a preview with green bar (previously rendered) - GPU ramps up and export slows right down. This happens a few times on similar encounters with Previews that should be available. Premiere Pro is re-rendering whole timeline again !!
Conclusion - Use Previews Fix is not present in Beta version 26.6.0.021 as far as my initial testing shows
Have informed Adobe Support against a Case Ref as requested.
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