You have two options: One of the options (export followed by import), I have explained already in detail, in my comment above.
The other option is what you were trying to do (move items from your vault to a shared collection, and then clone the item into your wife’s individual vault). I believe that the confusion you were experiencing with this approach was caused by the fact that there does currently appear to be some kind of bug that prevents successful cloning of an organization item into an individual vault. For some reason this no longer works in the Web Vault, Desktop app, or in the regular version of the browser extension (version 2024.11.2). Until this unfortunate bug is corrected, your only option for completing the cloning task is to use the “beta” version of the new browser extension (version 2024.11.9991), which can be installed on any Chrome browser from this app store page.
If you are going to attempt this method, you first need to ensure that your wife has “Can Manage” access to the “Holding Tank” collection; she does not need to have her role changed from “User” to “admin” or anything else. Below is what you should see if you log in to your (Family Plan Owner/Admin) account in the Web Vault, and go to the Admin Console:
If you click on your wife’s account in the list above, you should see the “Edit Member” dialog, as shown in the screenshot below. Click on the “Collections” tab, and confirm that she has “Can Manage” permissions for the “Holding Tank” collection:
If you haven’t already moved the items to be transferred into the “Holding Tank” collection (from your individual vault), you should do so now. I believe that you already know how to do this, but basically: switch from the Admin Console to the Web Vault Password Manager app, use the checkboxes to select the vault items to transfer, click the kebab icon at the right edge of the column titles, select “Assign to collections”, then specify the “Holding Tank” collection and click Assign.
Next, use the beta version of the Bitwarden browser extension to log in to your wife’s account, then click the “Collections” filter (1), and select the “Holding Tank” collection (2):
Now, for each item, one at a time, click the kebab icon for that item, and select “Clone”:
At this point, in the new item page, click the selection arrow for the “Owner” field (1), and select your wife’s email address from the menu (2):
Optionally, change the “Item name” (e.g., to remove the automatically appended suffix “- Clone”).
Finish by clicking the Save at the bottom.
After all items have been cloned from the “Holding Tank” collection into your wife’s individual vault, then it would be wise to delete the original items from the “Holding Tank” collection. You can delete these items all at once if you use the Web Vault. If you need instructions, please let me know.
Apologies, I didn’t realize that there is a bug that has made the cloning step not work in the other apps. Hopefully it gets fixed soon, after which you should be able to do the above steos within the Web Vault, or within the Bitwarden Desktop app.