Employee Expense working from home Re Covid

I keep getting the following Error review but I cannot find out how to bypass it:

"Specify the employment income you want to claim employment expenses on for working at home due to COVID-19. This can be done by selecting ‘yes’ to transferring employment..."

 

I have selected the flat return and selected yes  to: Will you claim employment expenses for working at home due to COVID-19 for income on this T4?"


But I keep getting the error. Any ideas on what I am doing wrong?