I'm entering K-1 info (from S-Corp that I own). The income from K-1 doesn't adjust QBI for 20% deduct on 1040. Only QBI adj coming from Oil/Gas Royalty 1099-MISC. Issue?

It depends.  For starters, the QBI calculation is complex, especially if the individual is above the 157,500 thresholds if single, married filing separately, or head of household, or 315,000 if Married Filing Joint.  But these are the steps needed to help the program calculate QBI correctly:

1. Under Wages and Income, scroll down to the Subheading Business Income, and select K-1.  
2. On the screen Choose Type of Activity select whether it is Business Income  or Rental Real Estate, (if business income, answer questions regarding your stock ownership and Material Participation, if rental real estate, answer the appropriate questions about being a Real Estate Professional, Active Participation, and Special Handling.)
3. On the screen Check Boxes That Have an Amount, you should select Box 17 info.
4. You should see codes V and W on the K-1 (if you do not, this is would be one reason why the QBI does not calculate.  This information must be entered from the information on the K-1 for QBI to calculate).
5. Select any that apply on the screen Other Situations, and any information to the question Did this business receive qulified payments from a cooperative.
6. Answer the question about anticipated income on the next screen, We're almost done.  If anticipated income is below the threshold, QBI will calculate after that screen.  If above, you will provide additional information, and QBI will calculate according to the final results of the calculations.

Feel free to comment if you follow these steps and you don't see the QBI calculation (you will need to look at the tax summary using online software; the QBI calculation is much easier to see in Forms Mode available on Desktop Software).

You may find the following FAQ helpful:  https://ttlc.intuit.com/replies/7036528

thank you for clarification.  That was the missing link, Line 17 code V and W on the S Corp K-1 form.

I'm glad you found it and can get the deduction.

I've followed the instructions and the QBI isn't calculating.  It calculated a couple of weeks ago, and now it doesn't.

More information would help diagnose your QBI issue.  For example:

1. What version of TurboTax are you using?
2. What screen caused you to conclude that the QBI that was there a couple of weeks ago is no longer there?
3. What changes to the tax return have you made in the last couple of weeks, e.g., adding additional income or designating a business as a specified services trade or business (SSTB)?

@teralt2003