Have there been cases when the project was not completed within the set deadlines?

Yes, cases where projects are not completed on time are quite common. This can be related to:

• Underestimating the scope of work or task complexity.
• Changes in requirements during development.
• Insufficient communication within the team.
• Technical problems or bugs.
• Limited resources (time, people).

To minimize risks, it is important to plan the project with a margin, regularly review progress, use agile methodologies (for example, Agile), and identify problems in a timely manner.