You might have become confused by the flow of information in the software.   That "refund monitor" on your screen displays a "refund" amount that includes the stimulus money. as part of your 2020 refund.   But later when you enter the amount of stimulus you really received already, it removes the stimulus already given to you.   And it looks to you like you "lost" your refund,   But ---you do not get the same stimulus money twice--that is why it came out.

Look on line 30 of your Form 1040 for your recovery rebate amount.

https://ttlc.intuit.com/questions/1901539-how-do-i-preview-my-turbotax-online-return-before-filing

Click on Tax Tools on the left side of the screen. Click on Tools. Click on View Tax Summary. Click on Preview my 1040 on the left side of the screen.

Ok that makes sense now. Thanks.

It sounds like the tax calculator initially gave you’re the rebate credit (line 30 on the 2020 form 1040) before you told it that you already received it.  Which number looks "right", before or after?

The tax calculator is only a quick look and not what to actually file.