I am not 100% sure what happens because I cannot reproduce the problem but it can be related to a sanitize function that is executed before save:
all html tags are filtered out of the comments when you save. If you had pasted something into the form which looks like broken html it may have the undesired result that text will be deleted.
Message me if you have a text snippet that triggers that behaviour so I can look into it deeper.
... and thanks for supporting!
Beep, Bopp, Bleep: [email protected]