我正在使用场景构建器8。 问题是在编辑器中拖动项目，编辑器显示黄色阴影以显示项目的预览位置。但是，这些黄色框不会消失。
java -version
java version "1.8.0_161"
Java(TM) SE Runtime Environment (build 1.8.0_161-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.161-b12, mixed mode)
OS
OS: Fedora 27 TwentySeven
Scene Builder
The latest version of Scene Builder for Java 8 is 8.4.1, it was released on Oct 17, 2017.
