Have there been cases when you did not succeed with a manager?

Yes, such situations happen, and it is important to be able to resolve them constructively. If I do not get along with a manager, I try to understand the reasons: perhaps different views on priorities, communication, or expectations. In such cases, open dialogue helps, where I explain my position and listen to their arguments. If the conflict persists, a third party — for example, HR or a more senior manager — can be involved for a mediatory meeting. The main thing is to maintain professionalism and focus on the project goals, not personal disagreements.