If I select another file in the folder, it will load that. When I switch back to the correct file, it does correctly load. I can see the output via F6. But then within seconds, the node goes back to pretending the file doesn’t exist (despite me being able to select it in the browse dialogue). Here is the file both loaded and then five seconds later, not existing:
Further to this, the behaviour has changed again, in that now it is finding the folder correctly but writing out the file wrong, inserting “%20” instead of spaces: