Agile Board - Features are not shown as completed

For example in the board:

http://youtrack.jetbrains.com/rest/agile/JT/sprint/4.0

There are a ton of empty slimlines (features) like:
JT-2241 REST: provide a way to change issue description or summary
JT-3838 Show FSI if search result contains only one issue

That are fixed but that status is not shown there (must be strikethrough or with another color: gray for example)

Thanks