An issue has been reported in Reckon APS Tax 2020.3.1 where some users are unable to lodge some 2020 individual returns due to the below error:
This issue occurs when there is a special character in the name of the Payer under the dividend section. This is not allowed by the ATO. In some instances, where there are no special characters.
Delete and manually re-enter the payer name for the Dividend. Please do not copy/paste the name or enter any special characters.