API-1004 thrown when trying to create To-Do Item

Products

• Clarity PPM On Premise
• Clarity PPM SaaS

Issue/Introduction

In the Modern UX,  an API-1004 error is generated and a new To-Do does not get created

Steps to Reproduce:

1. Login to Modern UX. Make note of the account being used
2. Navigate to any project where the account being used is the project manager
3. Navigate to the Task Board
4. Create a new task on the Task Board, enter a task name, press Enter
5. On the same task flyout switch to the To-Do
6. Create a new To-Do, enter a to-do name and press enter

Expected Result: A new To-Do is created
Actual Result: API-1004 error is thrown and a new To-Do does not get created

Environment

Version: 15.8.1

Product: Clarity 
Module: Projects; Tasks; To-Do; Modern UX

Cause

Due to defect with ID DE55922.

Resolution

This issue has been fixed in version 15.9.0.