1099-NEC includes reimbursed expenses, eliminates home office deduction

Hello,

 

I am an independent contractor with only 1099-NEC income. My client sends me on many business trips for this job, which I pay for myself and they then reimburse me for. This year, for the first time, they included all of the travel expenses on my 1099. I figured that was fine, I'll just deduct it on my Schedule C as travel expenses.

 

When I did so, my home office deduction surprisingly went to $0. I can't figure out what limitation TT is imposing here; no, my total deductions are still far below my total 1099 income. My 179 and vehicle mileage deductions were unaffected. Only the home office deduction changed. What am I doing wrong?