After trying different solutions, the only one I was able to get TurboTax to have Form 8949 come out correctly is going to Forms and directly editing the Capital Gain (Loss) Adjustments Worksheets by selecting Form 1099-B reports and incorrect basis in Part III. By doing this, TurboTax correctly updated Form 8949.
I believe this is an acceptable workaround to what I can't get TurboTax to do directly (which it has done in previous years).
