Expected revenue 0.0 after stage is set to closed won

Expected revenue 0.0 after stage is set to closed won

We have multiple projects which are set as closed/won. Some of them show an expected revenue correctly. The others seem to show 0.0. If I look down at stage history, closed won shows the correct expected revenue. Why would the stage history reflect closed/won with correct expected revenue, but at the top of the opportunity, it shows 0.0?