API-1018 gets thrown in the Tasks Board view in Modern UX

Products

• Clarity PPM On Premise
• Clarity PPM SaaS

Issue/Introduction

Steps to Reproduce:

1. Open a project in the Modern UX
2. Switch to Tasks - Board view
3. Create new card
4. Click on the card (It is important to click on the card to reproduce this defect)
5. Assign name through the Details fly out on the right hand side
6.  Hit Enter key

Expected Results: Task gets created
Actual Results: Task does not get created. The following error gets thrown: 
"API-1018: Could not process the request. Refer to error code for more details"

Environment

Version: 15.9.0.

Cause

Defect with ID DE59227.

Resolution

The defect is fixed in version 15.9.1.