iOS Gantt Chart does not show items

[OTBman]

Why don’t my linked items show up on the Gantt Chart?

[shortki]

The application tries to build a Gantt chart based on the time parameters you enter. If no time estimate (expected execution time, planned schedule, schedule) was specified for an object, then the object will not be displayed on the Gantt chart. Specify any of the parameters.

Also, if the diagram structure assumes that the object can never be activated, then the Gantt chart cannot be built. This happens, for example, when an object depends on itself and its execution can begin only after its completion, which in itself is nonsense. Check the structure of links between objects.