Form 1040 Line 6 Earlier Year Lump-Sum Social Security Worksheet error

TT indicates an error: Earlier Year Lump-Sum Social Security Ws (2024); Earlier year taxable social security benefits for taxpayer should not be more than 85% of the sum of Line B, earlier year total SSA and RRB benefits for the taxpayer and spouse.

 

My refigured taxable social security benefits is figured elsewhere as 85% of Line 1, not Line B (that would be Line B plus the lump-sum paid in 2025 for 2024 benefits). Is this not an programming error?