On the page https://meta.wikimedia.org/w/index.php?title=Special:Translate&showMessage=Template%3AWiki99%2Fi18n%2F21&group=page-Template%3AWiki99%2Fi18n&language=he&filter=&optional=1&action=translate , I see two insertables:
- $1
- $1�
The last character in the second one is "FFFD REPLACEMENT CHARACTER".
I would expect to see just one, $1.