need help understanding why my newer phone doesn't get graphics/sound while playing HQ live

[Android Central Question]

I've been playing a Live game called HQ Trivia with my sister. My sister has a Samsung Galaxy S5 and I have a S8. However, on my phone I have a lot of problems with the video and sound not coming through. The game questions sometimes (not always appear), but that's it, I don't hear or see anything else. But my friend has no problem on her S5 getting the sound and video. We're using the same wifi. I'm hoping someone can explain why I'm having problems with my, much newer, phone.

 

[Android Central Question]

I've been playing a Live game called HQ Trivia with my sister. My sister has a Samsung Galaxy S5 and I have a S8. However, on my phone I have a lot of problems with the video and sound not coming through. The game questions sometimes (not always appear), but that's it, I don't hear or see anything else. But my friend has no problem on her S5 getting the sound and video. We're using the same wifi. I'm hoping someone can explain why I'm having problems with my, much newer, phone.