Replace timeline clip with different speed wrong

[kalamazandy]

On windows, holding Alt+Shift should allow you to replace a clip on the timeline with another copy. In my case, I have to do this because I am replacing footage in an existing project with footage from a production. Since the footage in a production, annoyingly, doesn't show in your bin at all this seems to be the only way to take a timeline that uses footage from a production and do that in a way that actually uses the footage from the production. 

It's the same footage, so why would I want to do that? I'm sure someone would ask that. The answer is because we created a premiere file for each shoot already and created proxies for them. I figured out a trick to make proxies with the stupid headache of Premiere being incredibly difficult when dealing with audio mismatches. Yes Premiere I'm aware that my proxy file has audio channels and the S&Q footage that we shot has no audio. 

Since proxies already exist, but they can't be assigned to half the files because of various things being mismatched, I'm replacing the footage on the timeline one by one. I got to a nested sequence where the couples pieces of footage in ther had their speed set to 200%. 

When I replaced the footage, holding Alt+Shift, I noticed the footage jumped. I changed the footage speed to 100 and the replacement stayed the same. Then just changed the speed back to 200%. 

I thought it would be annoying to have to replace a clip with more complicated time remapping, but no. Replacing one with time remapping Keys works fine, just as you would expect. It's only when the speed has been changed with a straight percentage. So this seems to be clearly just a bug. I did an experiment and change the speed to 200%, but with a time remapping key and then it was fine. I also set several keys on another clipe and changed it dramatically. Same thing, no issues with changing which footage the clip was referencing. 

[Bruce Bullis]

Is the "existing project" in which you're replacing media, part of the Production, from which you're getting the media? 

>Since the footage in a production, annoyingly, doesn't show in your bin at all

Eliminating duplicated references to the same media in different projects, and instead sharing that unique media instance across the projects in a Production, is one of the main features of Productions. Media used within a Production, will show in at least one project within that Production. 

>...we created a premiere file for each shoot already...

I presume 'premiere file' == .prproj; is that project part of the Production? Any reason to not bring media into a "Media" .prproj, within the Production?

>...stupid headache...

Yes, matching audio channelization/configuration is a requirement for proxy usage within PPro; this requirement eliminates a whole range of possible headaches, downstream.

>...I'm replacing the footage on the timeline one by one.

Would it not be simpler to instead replace the referenced project item, which would make PPro replace all track items based on the original? 

>I got to a nested sequence where the couples pieces of footage in ther had their speed set to 200%. 

Confirming: You opened the nested sequence, and replaced the track items within it, yes? 

> I noticed the footage jumped...

It's not too surprising that you're seeing different behavior; speed changes are applied to project items, while time remapping is applied to track items. 

Regardless, sounds like a bug.

We'd be happy to pursue it further, if you could provide a simple sequence, example original and replacement media, and step-by-step instructions that reliably reproduce the issue. [private upload space available, as needed]