Reproduction steps:

1. Create a new project
2. Open Window → Package Manager window
3. Add a Scoped Registry by following the steps in this link
4. In the Package Manager search type “Timeline” and install the Timeline package
5. Go to the Timeline package directory and copy the package folder to another directory
6. In the copied package folder open the “package.json” file and the change “version” variable to a lower version i.e. “1.6.0”
7. In the Package Manager window install a package from a disk and select the “package.json” file from the copied directory of the package
8. In the Package Manager window select “My Registries”
9. In the search field type “Timeline”

Expected result: The Timeline package can be updated from the scoped registry
Actual result: The Timeline package is not shown in the “My Registries” tab

Reproducible with: 2020.3.42f1, 2021.3.14f1, 2022.1.23f1, 2022.2.0f1, 2023.1.0a21

Reproducible on: macOS 13.0

Note: Timeline package still can be updated from the “In Project” tab