Something you have to consider when literally no one else has your issue is that the issue is not with the program itself, but your computer, something you're doing, or something on your computer.
I think the best course of action would be to keep the savefolder open while you're saving and seeing if anything odd happens to the file. If it's not updating when you save, something is blocking Dolphin from writing the file. Like said above, some anti-virus program could be preventing Dolphin from accessing other files on your computer.
I think the best course of action would be to keep the savefolder open while you're saving and seeing if anything odd happens to the file. If it's not updating when you save, something is blocking Dolphin from writing the file. Like said above, some anti-virus program could be preventing Dolphin from accessing other files on your computer.