Hi
Our project heavily relies on the function to automatically use the sprint dates as Start and End date for issues that are assigned to such sprints.
However there are some sprints which are used as "planning buckets" (e.g. "To be refined") which therefore don't have any date configured.

My expecatation would be that issues assigned to this sprint will have empty Start and End dates in Advanced Roadmaps. In reality it's quite the opposite: Start and End date of issues within this sprint are set to a random period roughly 3 months in the future.

I already tried to create completely new sprints, reset the dates back and forth, etc. Nothing changed and this is the case for all sprints.
Is this a bug or a setting I simply could not find yet?