Content not appearing (partial solution)
Since I installed Daz 4.24.0.3 a couple months ago on my new Win11 machine, I'm having a LOT of difficulty with DIM-installed products not appearing in the Install pane, the Smart Content pane (only a couple items!) and even missing from the Content Library. And I have "Filter by context" off. I've installed several thousand products from the DIM.
I tried copying back manually downloaded zips to the installation folder - but I think only the products not already "installed" would show up. After I removed G9 for example, finally it was an option again.
Despite installing, removing, and reinstalling, the Gen 9 content is nowhere to be found.
I tried stopping and restarting the CMS (which was not that easy to get running again) and so on.
What is going on?!
If it wasn't for all the latter day Gen figure content I've bought, I'd go back to Poser. DS is such a terrible UI experience. Nothing is intuitive. It feels like it was cobbled together by programmers instead of artists or even designers.

Comments
First, check if assets are showing up in the Content LIbrary pane/tab.
If they're there, skip to the second part of this.
1. Check that your file paths in DIM and Studio are the same.
FOr DIM:Click the Gear icon and select Basic Settings. The Content Base Path will tell you where items are being installed to.
Default is C:\Users\Public\Documents\My Daz 3D LIbrary.
In studio, Click the Content LIbrary menu button in the upper right corner and select Content Directory Manager, or F2>Content(tab)>Content directory manager.
Expand the DAZ Studio Formats and check that the file path matches DIM.
2.For Smart Content, Click the Pane Menu in the upper right corner, select Content Database Maintenance and check Re-Import Metadata then click Accept.
In the Import Metadata popout, you can, generally, just click Accept and studio will just reprocess all the items currently installed.
If there's not problem, items should now show up in smart content.
Thanks! I think the database reimport must have fixed most of it - or I found where it was hidden :P The paths were okay.
The Smart Content tab still has no figures at all and most of the categories are blank, but oh well.
I have to go through and find where some of the geometry is though because a number of items show up in the Library with nice icons... but the obj's are missing.
Let me rephrase that...
So yes, THAT is correct and (mostly) working. I'm not sure if I just wasn't looking in the right spot or if something was shaken loose. Probably the former :P
I'm guessing the lack of content in some of the products is due to improper original configuration. What a pain going through ALL of the products, though, and having to try and find where the missing files are. :( You would have thought that coming from the store, there would have been more QA to have better consistency, which Daz claims to enforce. It's so annoying seeing all the wild and varied non-standard ways they have been configured. Maybe newer packages are better, since I do have a lot of older ones.
Ok, so THIS part still isn't working. At least, as far as I understand it as working. After the import, there were a dozen packages listed on the Install tab, which I did do. (Another gripe - it was nice it was importing in the background, and, Oh! It's showing the status of the install on the very bottom status line! But I didn't know to look there at first. There should be a popup box that at least notifies you of the fact it is working in the backround. I expected a modal box, like almost everything else in this thing.
I want to use that vastly simplified interface that Dreamlight created - but I'm just afraid that something else will "break" or become unavailable, and nobody will be able to help me.
Any other suggestions?
There are none of the Figures or People entries in Smart Content, even after running the database maintenance several times. So it's effectively useless.
I'm considering doing a complete uninstall and reinstall of my 2K+ pieces of purchased content but.... ooof. I tried it with Genesis 2 Male and there was no difference.
As it is, it's just such a pain that I'm getting a Poser itch again, beyond just DS's arcane interface. Sigh. But I have sooo much DS Genesis content now!