Inside of Premiere Pro, when I copy a video clip effect to a named clipboard (ie: color correction), it works fine and I can paste it until I close the project or quit Premiere; then the “Unknown Clipboard Data” doesn’t work any more. Is this a limitation to how named clipboards work, or is there any sort of workaround for retaining the clipboard data? (when testing with the system clipboard the same thing happens)
Clipboards are made up of “flavors”, basically each clipboard entry is a set of different chunks of date. For example, if you copy something in Pages, then the clipboard might contain the plain text, and the styled text of the copied data. It might also contain other things, perhaps an image of the copied item, perhaps some proprietary information about the exact location that it came from, maybe some internal information like that so if you paste it could do it more efficiently, etc.
It sounds like Premiere Pro is copying some proprietary information that includes some sort of pointer to the thing you copied, and that link is broken when you quit Premiere Pro.
You could try this:
- Launch Premiere Pro
- Copy something
- Quit Premiere Pro
- Launch Premiere Pro
- Paste
Does that work?
In any event, I’m afraid the result is going to be the same, by the sounds of it you can’t use a Named Clipboard for long term storage of whatever you are trying to copy in Premiere Pro.
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I tested and launched Premiere Pro and copy text from the name of a clip, then I quit it and relaunched it and paste it without issue. So I tested other things, and can successfully copy clips, titles, bins, sequences, transitions, except for effects.
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You can try reporting it to them - it may also affect them with Tahoe’s clipboard history…