Set your blocks correctly first open screen then close screen
your blocks are not set perfectly
I understand his concernā¦ mine same error. It just a simple blocksā¦ when button1 click do open another screen, then crash. But as i read some bugs topic and release noteā¦ maybe it can be solve in 1.4.1, and as i expect thier something incompatible components in the screen ur trying to open.