CLOSED Issues got automatically assigned to a future sprint

Question

I was editing the current sprint, March 2021 to update the date start/end.  I noticed that some closed issues (some back in November 2020) got assigned to the April 2021 sprint which has not started yet.

Why did it automatically assign certain issues to the future sprint?

Closed issues should not be editable.

thanks

[Screenshot removed by moderators]

Patty Yuen · Answer

Looks like I don't have access to modify the workflow for issues.  Looks like I have to contact my administrator?

Ravi Sagar _Sparxsys_ · Answer

Take a look at the link I shared. You will have to modify the workflow associated with your issue type in your workflow scheme.

Patty Yuen · Answer

where would i configure the workflow property?