After updating to the latest version of GDevelop (5.0.134), Yarn does not save anything, I’ve tried to use “Save as” and nothing, tried clicking on apply and still nothing.
(I have restarted and reinstalled GDevelop, still nothing)
I’m using a separate software called YarnEditor for now. It seems to be working fine but I’ve not tested it completely. If you really need to work on your project right now you might want to give it a try, though make a backup of the files before changing anything since the last release was some time ago and it might be incompatible with some stuff now.