Opening a text file fails with 'File "example.txt" Cannot Be Read'

[tkarhun]

Attempting to open the attached file gives error message:

'File "example.txt" Cannot Be Read. It may be corrupt or you don't have permission to read it'.

Opens fine in nano. Permissions are fine.

The example file reproducing the error:

example.txt

Code version 3.4.0, OS version 5.1.4 Hera.