SSRS report Calendar Icons not getting rendered for the date report parameter fields

[srinivasande]

Trying to open SSRS report which has date fields as the report parameters, but only text fields is getting rendered but not the calendar icons, so that user can select the date and cick on "View Report'" to view the actual report.

Integrated this component in my .NET Core MVC 6.0 migration project.
Trying to access the SSRS reports on Report Server 2019 and even tried on Report Server 2014 versions too but facing the same issue for the date fields.

Appreciate your help, if anyone faced the same issue and have solution for the same.

Thanks.