In the past there was some user reports with bad soldering points. If you have the skills you could grab the magnifying glass, a multimeter and the soldering iron.
The alternative I see is to request spare parts at Argon40/your dealer, but it might be difficult to identify the faulty pcb first - so you could end up with a exchange of the complete Argon ONE V3 unit.
Seldom, but sometimes also the RPi5 was faulty. If you have a second one you could test against this.
If you are in the mood to test with a fresh install, you could try without the NVMe attached. But here was a similar situation like you have: Argon BLSTR DAC not working - #25 by BillB