I had the same problem and could not delete stock sales. The trash can was not showing on the screen.
However, I found that I could expand the table by dragging the upper right edge of the headings row.
This caused an addition column to be displayed and the "trash can" on each row became visible.
You will have to repeat this process for each row that you want to delete.
There is definitely a significant bug that needs to be fixed. I am using the Mac version of TurboTax 2024.
