Mandatory field not able to identify prepopulated data

Hi

I am facing a peculiar problem in one of my workflows. In the workflow a requester submits a form with a mandatory field of type Rich Text. Once submitted the task goes to a Steward who reviews the prepopulated data in the same form. The he approves or rejects. Now, when the Steward gets the task, the data is prepopulated as expected but the Approve/Reject buttons are disabled. This is because the mandatory field shows the message "Field must not be empty" although it is not empty. When the user just clicks on the field then the error vanishes, and the Approve/Reject button gets enabled instantly without changing or entering any value in the field. Have anyone faced this kind of issue? I am in Collibra v2024.10.0