Maybe the carryover Loss was all used up last year. You should check your 2018 return.
There is a Carryover Worksheet showing the carryover from the prior year and the current amounts. Then there is also the Capital Loss Carry Forward worksheet showing the amount transferring over to next year.
If you have a negative AGI or negative taxable income it will show up on 1040 BUT it won't reduce the carryover to the next year.
In the Online version you have to save your return with all the worksheet as a pdf file to your computer to see the Capital Loss Carry Over and Carry Forward worksheets.
In the Desktop program you can go to Forms and find it in the list in the left column.
