Am I wrong to feel excluded in my project group? (Smurfit)

My assignment group is mostly made up of one nationality except me and while they’re friendly, they usually speak in their own language, even in our project group chat.

When they talk to me directly, they switch to English, but the rest of the time it’s back to their language. It makes me feel left out and I honestly don’t know what they’re discussing half the time.

I’m not sure if I should raise this with the professor, or if I should just leave it and try to adapt. Has anyone else experienced this, and how did you deal with it?