Open Workbench (OWB) and Clarity PPM Gantt Autoschedule pushes task dates and ETC out and changes task duration, in the following scenario:
Steps to Reproduce using OWB:
(Though issue can also be reproduced similarly in the PPM Gantt)
Actual Results: For some of the tasks, ETCs and Task Start / Finish dates get pushed out and the durations of the tasks are shortened.
This was reviewed as CLRT-76987 and is working as designed. Uniform loading pattern is special when it comes to how it works with Max % Load. If the % of availability is less than the Max % Load then those days are not scheduled when the loading pattern is Uniform.
Release: All Supported Releases
Component: OWB, ODPRM, PPMPRM
Change either the Max % Load or the loading pattern for the assignment(s) to bring in the task. Example: Change the loading pattern for the assignment to Front. It's recommended to test with the loading patterns and review the documentation at: Set System-Level Default Project Management Settings to see which loading pattern (or Max % Load) works best for your project.
To change the loading pattern:
Here's a snippet from the documentation at OWB: Add Project Tasks and Assign Resources on the behavior for Uniform:
Uniform Loading Pattern
This pattern assigns resource time evenly across a task only on those days when the resource is available to meet the task requirements. For example, if a resource is scheduled to work four hours per day on a task, the resource will not be scheduled to work on that task on days when the resource is only available to work on the task for three hours. The maximum percentage and resource availability is taken into account when assigning resources to tasks using this loading pattern.
Note: To use this loading pattern, set the maximum percentage of the resource on the task.