@JIM, it looks like setting LC_ALL=en_US.UTF-8 either didn't take, or has been reverted to C.
Try using this to set it again...
... then checking the value again using echo $LC_ALL.
If the setting has updated to en_US.UTF-8, try your commands again to see whether there's a different outcome. If that doesn't work, you might try the second approach Thermokarst suggests in this post, setting the variable on a temporary basis, while running your command.
If these suggestions don't help, let us know what response you get and we'll go from there. Thanks for your patience,
Chris