I have the same issue and uploaded a file on December 31.  At that time I was told that issues were usually resolved within 24 hours, but would take longer due to the holiday.  I have not been contacted since then and am also continuing to use last years' program.  I am lucky that I had backups prior to conversion and am able to use last years' program.  I did copy the 2026 payroll tax tables from the 2025-2026 software and pasted it into the 2024-2025 version.  That has at least kept me in business so far.