Form 7206 Line 9: what is it asking?

I'm amending my 2023 return because I realized that I had neglected to indicate that my ACA medical premiums were deductible from my self-employment income. Federal Review has flagged a missing entry on Form 7206 Line 9, which says "Enter the amount, if any, from Schedule 1 (Form 1040), line 16, self-employed SEP, SIMPLE, and qualified plans, attributable to the same trade or business in which the insurance plan is established." I don't understand what the red text part means. I've got one self-employment business, and my SEP contribution is from its earnings. I purchased the insurance plan from Covered California for my family. I don't understand the "insurance plan is established" stuff.

 

Even more confusing, I just dug into my 2024 return in which I correctly enter this information the first time. On Form 7206 there is no entry at all on Line 9, and the Federal Review didn't flag anything. I don't even know what is going on here.