This hotfix addresses issues related to deleting or modifying walls, a crash may occur.
Make sure to download the correct patch for your operating system (32 or 64 bit) and Revit build number.
The Readme contains the latest information regarding the installation and use of this update. It is strongly recommended that you read the entire document before you apply the update to your product. For your reference, you should save the Readme to your hard drive or print a copy.