Please replace Fira Code in the above mail with JetBrains Mono and
disregard the IPA stuff.
I have attached the emacs and hb-view output.

I have noticed that this does not happen with Iosevka

On Fri, Sep 30, 2022 at 4:24 AM समीर सिंह Sameer Singh <
lumarzeli30@gmail.com> wrote:

> When a font is set for the "default" face in the init.el file.
> For example, like this:
>
> (set-face-attribute 'default nil
>    :font "Fira Code"
>    :weight 'regular
>    :height 170)
>
> This messes up the font selection for various latin and all ipa characters.
> Despite the configured font supporting the characters which are typed,
> Emacs selects a different font for them, this results in visually jarring
> text or sometimes failed composition.
>
> For example see in 1.png
> All of the letters except ṇ (#x1E47) are in Fira Code while it is in Latin
> Modern Mono despite Fira Code supporting it.
> Below it t̪ (t + #x32A) is not composed properly because while 't' is in
> FiraCode #x32A is in Step Regular.
>
> Note: This does not happen with emacs -Q
>
> Thanks
>