The past few days I've been having issues editing posts. I'm able to add text to any line that already has text. If I try to add anything on an existing new line, nothing shows up in the editor, but the last character I typed shows up in the preview.
I'm using Safari 17.0 (19616.1.27.211.1) on Mac OS Sonoma. This does not seem to happen on Firefox on the same system.