I think they were appended to the end of each line, so unfortunately that would make it non-obvious that something was there. If they were rendered as spaces that would explain not being able to see it. Displaying them as � would be an improvement.
Again, this was awhile ago, but I don't think they were single characters, it was a sequence of characters.
Again, this was awhile ago, but I don't think they were single characters, it was a sequence of characters.