The "Less Common Income" page asks if you have any of the categories of income that they list. I clicked "Yes", but the program took me directly to the Health Savings Account page. I tried several times with the same result. So, I cannot enter information about my less common income.
Where asked about the Health Saving Account did you click on None of the Above and Continue?
If you get to the screen headed "Less Common Income" and answer "yes", then TurboTax is going to walk you through each of the income categories that it lists. You said that you had one or more of them, so TurboTax is going to walk you through all of them. The first one happens to be for HSAs.
The reason this is happening is because you clicked on Visit All on the previous screen "Wages & Income" under the subheading "less Common Income".
If you know which type of income you wish to enter, then on the Wages & Income screen under less Common Income, click on Start (or Update) for that specific income type.
Note, if you do see the HSA Summary, just click "Done" and if you see "What type of High Deductible Health Plan did [name] have on December 1, 2017?", just answer "None". This will take you to the next income category, W-2G.