You install Logic Pro X 10.3.3 on a clean OS. You open the app, but every time it tries to download the essential sounds, it fails. Internet is connected, but the download bar never completes.
If you previously purchased Logic Pro X when version 10.3.3 was current, the Mac App Store allows you to redownload compatible versions for your specific operating system. Open the on your legacy Mac.
If you are trying to set up a specific studio workflow, please let me know: What is your target Mac currently running? Do you already own a license for Logic Pro?
It is critical to understand that 10.3.3 is compatible with modern macOS versions. This version is intended for older Macs running El Capitan, Sierra, or High Sierra.
If you have previously purchased Logic Pro using your Apple ID, Apple allows you to download legacy versions directly onto older operating systems. Boot up the older Mac running macOS Sierra or High Sierra. Open the .