This is exactly what I did when I attempted to reproduce your issue. It worked however. When you say it “fails”, what exactly is the mode of failure? Error message? Nothing happens?
BTW, doesn’t such a long name spill over into neighboring slots making it hard to read? The reason why I bring this is up is that with a name that spills over like this it might be easy to be confused about what slot is highlighted when you press load…
Instead of an underscore, a space would look like this:
Just trying to wrap my head around what is going on over on your end.