Have a bug using the font in a macOS terminal, inside an application (Panic's Nova), with a unicode character in my bash prompt.

It shows a 'SOH' (start of heading) written after the character, which doesn't happen in any other font I've tried, thus being something with the font and its characters - also happens with others besides this one.
Any idea why this might be happening?

Have the bash prompt defined like this:
PS1='\n\[\033[0;32m▲\[\033[00m \]\[\033[00;36m\W\]\[\033[00m:\] ';