update

src/modules/editor/controllers/ReactCtrl/rxValue.ts

@@ -139,8 +139,8 @@ class RxValue {
             names.forEach(name=>{
                 const initV = _fields[name]
                 const isRxField = typeof initV == "object" && initV.__rx
-                if (isRxField) {
-                    out[name] = obj[name].fromJson( json[name] );
+                if (isRxField ) {
+                    if(json[name]) out[name] = obj[name].fromJson( json[name] );
                     return;
                 }
                 obj._rxs[name].next({value: json[name], _hstry: false})