Sole proprietorship profit remains same even when expenses are increased?

I’m using TurboTax Home & Business 2024.

I have a Schedule C business with income. My net profit is stuck at fixed value

When I try to increase deductible expenses like advertising, office supplies, or vehicle costs, TurboTax automatically reduces the home office deduction, and the net profit remains unchanged.

Is there a way to reduce the profit further without reducing the home office deduction?