Text is not printed properly inside SmartArt boxes.
Thank you for contacting Aspose support.
We are able to replicate the said issue while using the latest version of Aspose.Cells for .NET 7.7.2. A ticket (CELLSNET-42379) has been logged in our bug tracking system to look further into this matter. Please spare us little time to properly analyze the problem cause, and to provide a fix at earliest. In the meanwhile, we will keep you posted with updates in this regard.