Good that it's solved but this is a new filesystem and already some data corruption was detected:
Mar 5 03:27:57 iBstorage kernel: BTRFS info (device dm-6): bdev /dev/mapper/nvme0n1p1 errs: wr 0, rd 0, flush 0, corrupt 1, gen 0
Mar 5 03:27:57 iBstorage kernel: BTRFS info (device dm-6): bdev /dev/mapper/nvme1n1p1 errs: wr 0, rd 0, flush 0, corrupt 1, gen 0
Ryzen with overclocked RAM is known to corrupt data, max speed for that config should be set at 2133MT/s, not 3000MT/s.