Fixed bug with object selection in speckle playground that caused an exception to be thrown on send operations.
Also fixed some other minor extraneous warnigns and errors that would appear in console.
Changed materials message from a warning to a log
Fixed "EditorGUILayout.EndHorizontal must be called after EditorGUILayout.BeginHorizontal" error message seen on streams that take a few seconds to receive.
Fixed bug with object selection in speckle playground that caused an exception to be thrown on send operations.
Also fixed some other minor extraneous warnigns and errors that would appear in console.
EditorGUILayout.EndHorizontalmust be called afterEditorGUILayout.BeginHorizontal" error message seen on streams that take a few seconds to receive.Also upgraded the project to 2020.3.21.