Bracket appears on Custom Properties

[Jhonny_Afonso]

I’m using Single Send Api to send emails, from my App I trigger some emails.

I send custom parameters, among them some arrays and I iterate these on Hubspot.

When I receive the emails I see that the values of the array appear in brackets, eg, I see [Rock, Pop] Instead Rock, Pop

This is my portion of code.

{% for item in custom.music %} 
    {{ item }} 
{% endfor %}

[Derek_Gervais]

Hi @Jhonny_Afonso,

Can you direct message me a link to the email in question? I haven’t been able to reproduce the issue on my end thusfar.