If the manifest is buried inside a sub-folder within the ZIP, the LMS will fail to recognize the package.
Every valid LMS ZIP must include a manifest file at the root level to define the package's structure. LMSzip
Modern browsers may block certain scripts inside a ZIP if the LMS does not handle "cross-domain" communication properly. If the manifest is buried inside a sub-folder
💡 To ensure your LMS ZIP works every time, always zip the contents of your export folder, not the folder itself. The imsmanifest.xml must be at the very top level of the archive. LMSzip