I've also found numerous issues with iTunes running on Windows 11. After I upgraded my grandpa's laptop to Windows 11, his iTunes files pretty much just malfunctioned. It started off with deleting all of his 7 years' worth of playlists and then wiping his connected iPod, and now iTunes is struggling to find its music files. I've tried everything under the sun to fix it, including spending numerous hours on the phone with Windows and Apple support. I've finally accepted defeat and will be doing a clean install of Windows 10 on his computer in a couple of days until Microsoft can figure their crap out. P.S. the senior technician at Microsoft that I talked to admitted that Windows 11 has an abundance of compatibility issues with not just Apple applications.