I had an Covid-19 antibody test and entered a positive result into the Covid-19 Modue, but my screening status still says I am healthy.

Antibody testing determines whether you had Covid-19 in the past and now have antibodies against the virus. You could have contracted Covid-19, but not developed antibodies yet and therefore test negative. 

On the other hand, testing positive does not mean that you currently have Covid-19. We, therefore, don’t consider antibody test results when calculating your in-app screening status.