The following Warn is reported for all the fonts. It's usually recommended o delete this character. See this Fontbakery issue
⚠️ WARN Does the font contain a soft hyphen?
>
> The 'Soft Hyphen' character (codepoint 0x00AD) is used to mark
> a hyphenation possibility within a word in the absence of or
> overriding dictionary hyphenation.
>
> It is sometimes designed empty with no width (such as a control character),
> sometimes the same as the traditional hyphen, sometimes double encoded with
> the hyphen.
>
> That being said, it is recommended to not include it in the font at all,
> because discretionary hyphenation should be handled at the level of the
> shaping engine, not the font. Also, even if present, the software would
> not display that character.
>
> More discussion at:
> https://typedrawers.com/discussion/2046/special-dash-things-softhyphen-horizontalbar
>
> Original proposal: https://github.com/fonttools/fontbakery/issues/4046
> See also: https://github.com/fonttools/fontbakery/issues/3486
* ⚠️ **WARN**
The following Warn is reported for all the fonts. It's usually recommended o delete this character. See this Fontbakery issue
⚠️ WARN Does the font contain a soft hyphen?
This font has a 'Soft Hyphen' character.
[code: softhyphen]