Pure PSVR: Because Oculus rolls its updates out in waves, it may be that your Oculus program on your PC isn’t in-sync. This means that if you want to play PCVR game using the Oculus Link beta with your Oculus Quest, you’ll need to be on the latest version of Oculus on your PC. If you’re not, it simply won’t work. There is a workaround, though.
Source: N4G PC Oculus Quest Update 12 Brings Hand Tracking, Causes Oculus Link Woes – Here's How to Fix It