We have just created a new project within our organisation who is already using next gen for projects. We can see all of the other projects sprints when creating new tasks/stories and vice versa.
I'm struggling to find results on others questions on this in the community. There isn't anything I can find in the configuration to hide other projects sprints.
See example below - the only sprint that belongs to our project is the highlighted line.

Any help on this would be much appreciated, we want to avoid any confusion and incorrect allocation of tasks to the wrong sprints.