#UmbNav 4.0.0-beta0036 for #Umbraco 16 is out. This fixes an issue when trying to convert external menu items using the property value converter. This contains a patch to replace the core JsonUdiConverter with a custom implementation due to a bug. A PR for the core has been raised here (https://github.com/umbraco/Umbraco-CMS/pull/20011) and this patch will be reverted once / if it's merged. https://www.nuget.org/packages/Umbraco.Community.UmbNav/4.0.0-beta0036