Lightroom Import does not recognise M2 SSD

Why do you continue to associate your drives with OneDrive.? If you want to use OneDrive as a backup, fine, but to automatically sync each and every hard drive, each and every folder?

By syncing everything to OneDrive, every little save gets run into/from OneDrive, that eats up network bandwidth, that slows things down. This may not be so bad for say a Word Processing file, or a Spreadsheet. But it terrible for LrC. In LrC, each and every change you make, then causes communication to OneDrive. Add a keyword, OneDrive, Move the Exposure slider, OneDrive, apply a mask, OneDrive, OneDrive, OneDrive. If Access to OneDrive is slow, LrC is slow.

Point of the possible fix was to not allow OneDrive to sync your catalog. Point was to relocate the catalog in a folder that is not associated with OneDrive. This has helped some members.

Another method, is to go into OneDrive and disassociate LrC  catalogs and Photos with OneDrive, but then if you sync entire hard drives, that is problematic.

The fault for this lands at Microsoft. Microsoft wants everyone to use a MS account, MS wants everyone to just love OneDrive. They are heavy handed in trying to force users to create MS accounts for Windows PC's. And when you create a MS account to logon to your Windows PC, you get OneDrive. By default MS apply's that OneDrive to various System Library Folders, and to some file types. The Pictures folder, the Music folder, Videos folder, Documents, Downloads(not sure of this one) . Now in theory you could disassociate those (their are arguments for and against) but it is easier to just create a folder that is not associated with OneDrive. But if entire drives are sync's, not so easy.

Their are supposed I.T. pros on-line that advise to not use OneDrive so much, and more to the point who advise to not use MS accounts, to use local accounts. Some like myself avoid OneDrive like the plague. Some advise that OneDrive is not where you may want to backup (do you trust MS to keep you safe? Do you trust MS to not all of a sudden want money as in subscription?)

When you chat with Adobe, ask them about that. I could be full of it.

P.S., if you do move that catalog, you will probably have an issue with missing photos, or more specifically missing folders. see the following for how to fix:

• https://www.computer-darkroom.com/lr2_find_folder/find-folder.htm

P.S.(2), After moving that folder, you probably should not just clcik on the LrC startup Icon, that may bring up the wrong catalog (by default, most recent catalog) instead use your MS File Explorer, locate the catalog, and double click on it.

some links con MS accounts:

• Why you should NEVER login to Windows with a Microsoft Account! (VIDEO)
• I STILL Don't Want a Microsoft Account!! (VIDEO)
• How Do I Go Back to a Local Account after Setting Up Windows 11 with a Microsoft Account? (VIDEO)
• OneDrive Backup vs OneDrive Sync: Myths and Facts (mind you an advertisment)

and some con OneDrive with LrC links:

• https://www.lightroomqueen.com/community/threads/one-drive.49359/
• https://community.adobe.com/t5/lightroom-classic-discussions/how-to-stop-lightroom-catalogue-syncing-with-your-onedrive/td-p/11717401

Contact Adobe. To accomplish that bring up an Adobe webpage, and click on the Chat button. This will start a Chat. In the Chat include a description of the issue, The info in your discussion should work. And include a link to your discussion. You may want to have all that in a text file before starting the chat just to be more efficient at it. At first the Chat will be with a Bot, be assertive in requesting an actual Adobe Tech join in the chat, and/or ask for a phone call.   For example, bring up: https://helpx.adobe.com/contact.html And click on the Chat button (typically bottom right corner) If at all possible, keep notes on what the Adobe Tech does, as so you can share that with other members in your post.

So your D drive is associated with your OneDrive cloud storage.

And you assigned that new drive as D, where a previous D existed before.

Is is very possible that the OneDrive is causing you pain and grief. Mixing LrC up with OneDrive can be problematic, And I for one recommend DO NOT DO THAT.

I do not know if your catalog is on that D drive, from your discussion it sounds like it is. And defiantly sounds like your photos are on that D drive. Thing is, they may actually be on OneDrive, the Cloud site, not your physical drive.

I suspect if you bring up LrC /Help/System Info/ that for the info on the Library location you see something like:

Library Path: C:\Users\username\OneDrive\Pictures\Lightroom\Lightroom.lrcat

Recommendation, disassociate OneDrive from that D drive. And/or name it as a different drive letter. Point being to not see that OneDrive associated with the drive. Make sure all catalogs are not on a OneDrive, make sure all photos are not on a OneDrive.

This general occurs because Microsoft, when prompting you to create a user account (typically when first launching Windows) basically forces you into creating an MS account, instead of a local account. Some I.T. experts on the web state to not allow that, and they show how to avoid that. They absolutely hate and mistrust MS accounts. Oh, you can still use OneDrive, but you should be in control of that, not MS

Yes, some LrC community members think LrC and OneDrive is made in heaven, others state made in Hell.

Some links

• LrC Community Discussion | How to remove onedrive from my lightroom catalog location found in Catalog Settings
• LrC Community Discussion | Lightroom & OneDrive - a match made in heaven?
• https://community.adobe.com/t5/lightroom-classic-discussions/lightroom-and-onedrive/m-p/9283443
• LrC Community Discussion | Lightroom and onedrive.
• LrC Community discussion | Lightroom Classic and OneDrive Always Keep On This Device
• Choose which OneDrive folders to sync to your computer