I just installed Linux on Chromebook and running Cura 5.3.1. I am able to drop and drag files as well as using the terminal to open the file in cura.
When cura opens, the file folder on top left corner not opening as well as from the drop down file menu. After slicing the image and in preview it will only allow me to save to disk and not choose a file location to an SD card or usb. The drop down file menu save file or export is not working either. They are not grayed out just not doing anything.