Trouble with root

I use LOS with microg on my OnePlus 8T. I have been running rooted with Kitsune (magisk fork), and I always follow the process to maintain root when upgrading LOS. Today I updated but somehow lost root. So I went through the process of rooting again: downloaded the boot.IMG, patched it on device, moved it to PC, booted into fastboot, flashed patched.IMG to current slot. Kitsune still says N/A. Anyone else having similar trouble? Or maybe just care to point out something obvious I'm missing?