Eufycam2 notification sound on phone dont work

I have a problem with booth cameras the day one i bought(about 2 months i have) on settings camera have something call notification that let you choose some sound notification on your phone when cameta detect movement but every sound not work only i get vibration not sound and is not problem from my phone i try diferent devices anyoane have this problem there is any fix

I have the same problem. The notifications on all six cameras works fine but no matter what sound I select they are all silent. All required settings are as required. I’m using a Samsung S21 ultra.

Have you found a solution? I also have this problem. Thanks