When you say "these amounts will result in a larger deduction than the standard one", are you including all your state and local taxes (withholding, estimates paid and property taxes)? There is a new limitation of $10k for all state and local taxes that could be limiting your overall itemized deductions. Additionally, the standard deduction almost doubled this year so I also want to make sure you have the updated amounts.
You can find more information in this comprehensive article:
https://ttlc.intuit.com/replies/6971774