It seems that there is an error on the Sch 1, Line 8 Worksheet for the Unemployment Compensation Exclusion.  This Worksheet should look like the worksheet published by the IRS.

The IRS Worksheet step 2 says:  Enter the amount from Schedule 1, lines 1 through 6.  Don't include any amount of unemployment compensation from Schedule 1, line 7 on this line.

However, the Lacerte Worksheet says:  Form 1040, lines 1 through 7 and Schedule 1, lines 1 through 7.

If you include line 7 from Schedule 1, you will include unemployment income.  In some cases, this is causing a qualifying individual to not get the $10,200 exclusion.