FWIW I’m getting the same error when trying to write over a program already in the machine. Say I make a small power update to a program and save as the same file name, it first gives me this “Machine busy or paused” error, then I send again and it gives the same error a 2nd time, but then the 3rd time I send it it goes through, but doesn’t warn me that the file already exists. It’s like it deletes the file on send #2 and then writes a brand new file on send #3.
This seems to be a new problem in 9.18
This is on standard Ruida controller