[GrannyGrump]

I use a lot of custom fonts, with the glyphs assigned/mapped to the Symbol Character Set ("private use area") --- dingbats and other symbols. These have entity names such as  the numeric equivalent for that one is 61472;.

No matter how I enter these in the Preserve Entities list (with the xF0 code, or the numeric code), Sigil refuses to preserve them. I have Clean Source settings set to none. When I save the epub(s), everything looks fine. But when I re-open the file, those entities have been converted to "characters."

Since these are non-standard glyphs, in code view the only thing that displays is the "missing glyph" empty box. This makes search and replace more difficult than it has to be.

What, if anything, am I doing wrong? Is it because Sigil can't recognize these entities due to them being in the private use area?