For some reason these files come at the last after Unicode files with Name index ascending.
"Hilarious_Karate_Cat.flv", "Hilarious_Karate_Cat.gif", "Hilarious_Karate.gif", "Hilarious_.gif"
Strangely "Copy of Hilarious_Karate_Cat.gif" comes above in the order but below "Copy of zzz".
"Copy_of_Hilarious_Karate_Cat.gif" is slightly below that but remains within the C alphabetical index.
In the folder where the first named files are located , explorer Name index puts them at the correct locations and is followed by files starting with "J" , "K" etc. But in ET those files seem up the order in this case. It is the same in 649b too. Strangely did not think about it..