Comprehensive Overview of Sales QR Code Download Issue Affecting PDF Layout, Cropping, and Visibility of Transaction Instructions Across Devices, Highlighting Impact on Merchants, Users, and Operational Workflows, Including Missing Text, Incomplete Pages, Usability Concerns, Reproduction Steps, Expected Versus Actual Results, Scope, Priority, Temporary Workarounds, and Recommended Fixes for Frontend and Backend Alignment During Downloading Printing Sharing Archiving Compliance Reviews, Client Support Tickets, Quality Assurance Testing, Regression Validation, Release Readiness, Documentation, Communication, Tracking, Resolution, Ownership, Timelines, Dependencies, Risks, Metrics, Signoff, Completion