Reading a line with bash error

while IFS='' read -r line || [[ -n "$line" ]]; do echo $line; done < /mnt/ramdisk/file.txt  | less
while IFS='' read -r line || [[ -n "$line" ]]; do echo -e "$line\n"; done < /mnt/ramdisk/file.txt | less

The first output contains also the output as if it was the output of a ls command. The second also has an extra empty line after each line

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