I’m sorry to hear of your loss.
The T1255 gets info from the PRWS, Schedule 3, and
the T2019, as well as some boxes on the T1255 itself. When you are on the PRWS,
make sure that the question “Was this a disposition as a consequence of death”
is checked off. This should create a T1255 (1), so make sure that you don’t
have multiple copies of the form.
If you are still unable to resolve this issue,
please contact our phone support as they will be better able to assist you:
https://turbotax.community.intuit.ca/replies/3152013