I typically use a MacBook Pro to run the controller because I like to have the preview and it’s just easier all-around when I’m going back and forth between F1 and (Con)Fusion360. However, I often have to attempt to upload the G-Code several times to finally get it into the system. The first few times nothing happens and the old default code just sits there in the 1F interface.
I had occasions where the code file would upload but the drop down box would default to the first one in the list. I’d be able to select the newly uploaded code from the list but it wasn’t a complete failure to upload.