Can't use bangla or bengali fonts in Niotron

Hello Niotron team!
I’m new in niotron. When I tried to create my first project in niotron with custom bangla font nothing shows up.The text is still in unicode format. But earlier when i used another app builder, it’s working perfectly. Can you please guide me how to use custom bangla font in niotron?

Can u share any block or the font.ttf or any error?