Is it normal for some properties that are modified directly in the XML not to be seen in Studio 6.9? The problem with this is that it asks me to save changes when you do not have them and it eliminates the properties that were modified directly.
In the given case it is normal behavior.
When trying to set expand of single component in container, Studio will replace expand property with 100% size value (height in case of vertical layout) for that single component. But your split component has height=“790px”, so you can’t expand it.
If you want the split panel to be expanded inside layout, just set 100% height. Expand property makes sense in case of several components in container.
Is there any other cases when Studio doesn’t handle XML correctly?