Razer Synapse 4 - ERROR Set as default output device

Hello everyone, I’m a long-time razer fan since 2010 and I would like to address on issue that I’ve experienced for like a year and still no update / fix from Razer at all.

I bought the Razer Nommo V2 PC Speakers from 2024, and it worked incredible and flawlessly. But since Razer Synapse 3 is ending its support, and must migrating to Razer Synapse 4, I now experiencing so many issues, but the most important issue to be fixed as soon as possible is this:

I have already installed and used Razer Synapse 4 from 2025, every time i want to change my Razer Nommo V2 speaker sound settings, it automatically asked me to set the speaker as default.

------
Here are the prompt words:

DEFAULT OUTPUT DEVICE

Set “Razer Nommo V2” as the default output device to configure its audio settings on Razer Synapse.

----- 

The problem is, I have already set my speaker as my default device and still the problem is persist. I don’t think there is a quick solution for this and since Razer Customer Service chat has been ignoring this problem, I already switched back to Razer Synapse 3 again,

But since Razer Synapse 3 is already ending its support, should I keep stick to Razer Synapse 3? And solution how do I fix this? I’ve googled all over and looking for solution but none answers are helping.

Thank you for taking your time for reading my message,
Thank you.