I opened the file, wrote some code and saved the file. That's it. When I run the code it failed with syntax error, which showed on which line it broke and on that exact line there was that weird character. This time it actually was on 2 lines. Both times on a row with leading curly bracket {.
If I could reproduce it, then I would tell you exactly how it happened. But it does not happen that often. >From my observation it happens on bigger files. This one has 208833B. -- <https://forum.pspad.com/read.php?4,75192,75628> PSPad freeware editor https://www.pspad.com