The Standard Deduction is correct in both the Online versions and Desktop program. Check your date of birth in My Info or Personal sections. What is it giving you?
For 2025 the standard deduction amounts are:
Single 15,750 + 2,000 for 65 and over or blind (17,750)
HOH 23,625 + 2,000 for 65 and over or blind
Joint 31,500 + 1,600 for each 65 and over or blind (both 34,700)
Married filing Separate 15,750+ 1,600 for 65 and over or blind
Are you trying to add the new senior deduction? It is separate and automatic. It is calculated on 1040 Schedule 1-A. Which goes to 1040 line 13b. This is in addition to the Standard Deduction or Itemized Deductions on 1040 line 12e.