PS 12.2.5 Overlapping Operation/Changeover Issue

Hi all

I am in the process of testing PS 12.2.5 for use in our daily scheduling activities and have come across some strange issues.  In the following two screenshots, you can see how operations and/or changeovers overlap, after operations are moved and a repair is done to produce a feasible schedule.

In this example, the changeover, overlaps the first operation completely.

In this example, the changeover and second operation overlap the first operation.

Has anybody experienced this before?

Thanks

Nic