"Version" filter works against both "affected" and "fix" versions. For Issues that aren't resolved, Therefore, if as Issue has two versions assigned, for example, one as "affected version" is the one that is checked and for those already resolved, and another "fix version" respectively. This is how JIRA API is including informations about versions inside the issues, so that behaviour can't be changed right now, both these versions need to be checked on filter's dropdown list to have such Issue rendered on the chart. For more sophisticated filtering scenarios, JQL filtering can be used instead. | 