You can force it to un-match the album by moving it completely out of your library’s scan path and doing a scan. After, empty the library’s trash, clean bundles (Settings -> Troubleshooting), and double-check the path/filenames. I’d recommend removing (2019) from the path, I’m not sure how Plex will handle it. After that, move the the album back and scan again. Collectively, these steps are known as the “Plex Dance.”
Also, make sure the scanner and agent for your music library are both set to Plex Music. You may also want to check the option to prefer local metadata. These are all on the Advanced tab of your library’s configuration.
Beyond that, make sure your tracks are tagged properly, paying particular attention to Album Artist and Album.
