Deductions & credits

Unfortunately selecting the "both of us" option doesn't actually do anything.

It then requires me to select who the excess should be allocated to, which no matter how I allocate the amounts it comes out with the same issue - that I over contributed $1,300.

I also tried as you suggested and finishing the HSA portion with only the $650 excess, and then going back in and entering the $650 into HSA account #2 and it puts me right back a the $1,300 excess contribution.