I do not understand your question Photoshop is a document editor. Files open into Photoshop as a Photoshop document that may have layers or only have a single layer. You duplicate Layer into other open documents you do not duplicate file into other documents, You can place in file as a smart object layer. Photoshop works on Documents and works with layers not files.
Your image show you open several file into Photoshop and the document name reflect they were PSD files, You can duplicate layer into those open document that have been open from psd files. You can select them as the destination for the duplicate. As will as the new unsaved document Untitled-1, or even create a new document to receive the layer or group of layers.
Hi JJMack – let me rephrase my issue.
The two screenshots I attached are when I duplicate a layer from a document I'm working on (with lots of working layers) vs. when I duplicate from a new (mostly blank) document. Open documents are *missing* when I try to duplicate a layer from the document I'm working on. The *same* number of documents are open when I took both of these screenshots.
This is a very annoying bug and it's time consuming to duplicate to a blank document before I can duplicate to another open working document.
I use Windows 10 in current Photoshop 2021 though it has issues. Duplicate Layer seem OK. I just opened a large number of images of images, In Duplicate layer dialog destination I get a pull down list that I can scroll and select the destination to be any of the opened documents. All 70 open images are in the list plus NEW
I see the same in CS6
Here is the demo of the bug. It still present.
Documents are identical in color profiles, DPIs' etc
Adobe Photoshop Version: 22.3.1 20210406.r.122 990be2c x64
I do not edit in tabs. However, when I consolidate 3 document to tabs and use menu Layer>Duplicate Layer... there are no missing document in the pull down on my windows 10 PC in Photoshop 22.4.2. Are you using a Mac?
In the future, So people don't have to download the image you have attached, please use the Insert Photos icon found in the Tool Bar of the Post and Reply text entry dialog window as pictured below.
Since you Can't Edit your original post to remove the Attached screen shot Please include the screen shot you attached to a new reply to this conversation by clicking the Blue Reply button under your original post and use the Insert Photos icon in the tool bar.
The Insert Photos icon is this one in the Tool Bar.