@zontex Hi Roni, thank you for the reply. I am not using the browser version but am trying to use the offline desktop IDE. I start the UIFlow program from a terminal, it loads and everything appears to work well. I can write a program in Blockly and run it on the Core2 device, download it to the device and run it as well.
If I have a project on disk and want to load it then that is where my problem is. When I go to open the .m5f file as soon as the file selection window opens it locks up and I am almost unable to do anything at all (my whole system, not just in UIFlow). I can switch back to the terminal window and close UIFlow then once I have done that my computer is back to normal.
This happens with all projects not just mine, even a simple 1 line test project. I create a project to print 'Hello World!', I can save it to disk but if I try to open it from disk I have this problem.
Thank you for your help.