Poor velocity display when using an Agile board with multiple projects linked?

Question

As anyone had the following problem?

An Agile Board with multiple projects linked. 
For some reason when new issues are added during the Sprint and you sign user points to it,  they aren't properly displayed in the Sprint/report.

Chee-Hong Hsia1 · Answer

Here you go:

Agile Board > Report > Sprint Report

You see that many issues doesn't have Story Points. (-)
But when I look at the detail page of each issue, they do have them.

Timothy · Answer

Some screenshots will help :)