So I put Nonfarm Business Sector: Labor Share for All Workers (PRS85006173) on a graph. This data (series a) is quarterly by default. Everything was good.
Then I added a second series (series b) in the "Edit Line 1" window: Shares of gross domestic income: Compensation of employees, paid (A4002E1A156NBEA). This series is annual by default.
But the Labor Share data was still displayed at quarterly frequency. This surprised me, especially as the frequency was shown as "Annual" in the Edit-Line-1 window.
I changed the formula to display series b. The screen refreshed and this data was correctly displayed as annual. Then I switched back to series a, and it now displayed as annual.
I was starting to think everything was okay, and then I looked at the graph title. The title said "Not Seasonally Adjusted". I switched back to series b, and the title was good. I switched back to series a, and again the title said "Not Seasonally Adjusted".