Enhanced Content Editor — 2-Column Layout CSS Stripped on PublishDescriptionWhen using the Enhanced Content Editor (ECE) in Knowledge Center to add two- or three-column blocks, the columns display correctly in edit mode but after saving and viewing the article, the content collapses into a single vertical column. This behavior affects all instances running the Knowledge Center Store app prior to version 31.10.8 and prevents users from publishing properly formatted multi-column articles.Steps to Reproduce Go to knowledge center with ECE enabledAdd the 2 column in the blank canvas.Try adding text in 1 column and another text in another.Save the article and click on view article.The text appears in vertical.WorkaroundOption 1: Manually edit the published article HTML to restore the .ece-row and .ece-cell CSS rules Option 2 : Avoid 2-column and 3-column layouts until upgrade Option 3: Restructure multi-column content as separate 1-column articlesRelated Problem: PRB2015906