System.gui.transform error

*Edit:

Using the latest designer launcher form 8.0.12 fixed it. Isn't the designer launcher supposed to update itself? Or should we be updating after every upgrade?

Why is system.gui.transform giving me the following error? This started happening after an upgrade from 8.0.x to 8.0.9 and 8.0.12

system.gui.transform(event.source,newWidth = 100)

java.lang.NoClassDefFoundError: java.lang.NoClassDefFoundError: Could not initialize class com.inductiveautomation.factorypmi.application.script.builtin.WindowUtilities$Transformer

	caused by NoClassDefFoundError: Could not initialize class com.inductiveautomation.factorypmi.application.script.builtin.WindowUtilities$Transformer

It doesn't update itself yet, if there were changes to it you need to download it again.

I don't know why downloading a new designer launcher would have fixed this, though.