My sound settings keep switching to a different profile

Hello guys,

I have a Steinberg IXO12 sound card with an XLR microphone. To enjoy the best sound quality i choose the “Pro Audio” profile in the audio settings and it works great! But when I join a Discord call or chat in CSGO, the profile automatically switches to “Stereo Analog Dual” and the sound goes to my external speakers. I have to manually switch it back to my sound card and choose the “Pro Audio” profile again.

Could it be a default bitrate problem?
My sound card has a native 24-bit depth and 192 kHz sampling frequency

Can anyone help me solve this problem?
Thanks