Installed contents listed as missing files when loading a scene
As the title claimed, all the missing files listed in the second page are all installed. I do have my personal diagonsis which was when I launched daz3d yesterday, it says "recognizes a new content library "which is the "Library 2" but the path starts with library 2 directly not the "H/DAZ/daz...etc" as I thought it was a duplicated path, I deleted the one starts with Library 2. What do I do now? I know I could locate every single missing file, but I want to solve the problem thoroughly....

Comments
There is something odd, it shouldn't include Library2 in the path, as it is relative paths.
What are you loading?
If you find one of the files, what is then the full path to that.
I' m loading a scene used all those 4 library contents. Before the auto detection the scene could recognize the H/DAZ/daz2/Library2, and it's using contents in that library, I don't know why after the auto detection it switched to another "Library 2"
When DS saves content that is within a library, it will use relative paths, i.e. typically start with Data or Runtime.
When DS saves content that is outside a library, it will use absolut paths.
So that it have 'Library2' as part of the relative path means that when it was saved, there was a library where the first part was 'Library2'.
So would there be any possible solutions to correct its recognition?
For the specific scene I would probably open the scene in Notepad and do a search and replace, and remove the 'Library2/'.
Or if you have many scenes with that problem you could use Notepad ++, as they can do batches. The scene files need to be decompressed first, if you are compressing them when saved.
Have you checked on your drive where those files actually are?
Yes I did check out, they are actually in H/DAZ/DAZ2/Library2
and which is set as the content directory - H/DAZ/DAZ2/Library2 or H/DAZ/DAZ2? If it is, or was when you saved, both then that may be the root of the problem.
H/DAZ/DAZ2/Library2 was the content library I set, as the picture showed.
Was that always the case, or had you also had the parent folder H/DAZ/DAZ2/ selected as a content directory at one time? The issue you have would be highly likely if you did have both set as content directories when saving, because DS does not inherently know to start with the Runtime or Data folder when creating the relative path and so you can get the additional Library2 folder tacked on if it takes H/DAZ/DAZ2/ as the starting point.