If it's helpful I've got the exact same issue but with Flick at Bayern Munich. Around Jan 2030 it was announced he would be moving to DoF at the end of the season but now in Oct he is still the manager. Every few weeks there are rumours who will replace him but he is stuck. His career milestones look exactly like the screenshot provided above by gibbo11. I can provide a save if required but it's too large to upload here.