Show message "Microsoft.AspNetCore.Mvc.Rendering.TagBuilder" on OPE mode after adding a block itself to its content area

Found in

EPiServer.CMS.UI 12.0.3

Fixed in

EPiServer.CMS.Core 12.9.1

Created

Oct 28, 2021

Updated

Sep 06, 2022

Area

CMS Core

State

Closed, Fixed and tested

Description

Fixed an issue where the Microsoft.AspNetCore.Mvc.Rendering.TagBuilder message was shown on OPE mode after adding a block itself to its content area. The added content should not have displayed on the content area.