For 2023 my husband was the primary filer and I was spouse. for 2024 I was listed as primary filer and he was spouse. Does this make a difference.
The IRS instructions for Form 1040 say "If you filed a joint return for 2023 and you are filing a joint return for 2024 with the same spouse, be sure to enter your names and SSNs in the same order as on your 2023 return."