Assignment Hours not synchronised with Work Schedule

Summary:

I have an SR Open will Oracle support but i wondered if any other customers are experiencing the same issue.

When our employees have changed their work schedule, the new pattern is not being fed back to the Assignment Hours on the assignment.

When the employee goes to submit leave the absence duration and working days are incorrect, it looks like the previous working pattern (that's has been end dated in the past) is being referenced rather than the new current pattern.

We have not changed any of this config in 2 years and it had been working ok previously.