Refresh fails between servers (BTRFS)

Been backing up LXD containers between Ubuntu Servers with BTRFS filesystems for years, just started getting these errors across all containers recently during refresh (possibly at the end), anyone else experienced it?

lxc copy my-vm backup1:my-vm --refresh --storage=default --mode=push
Error: Failed to write backup file: Failed to convert backup config to version 2: Failed to deep copy backup config: Time.MarshalBinary: unexpected zone offset

Both servers are the following…
Ubuntu 22.04.5 LTS
lxd 6.4-2336111 snap package

Only happens on refresh

LXD has moved away from the LXC project - see End of LXD support on this forum. For LXD support now you’ll need to talk to Canonical or use their forum.

Oh wow, my apologies I should have spotted this thanks!
Time to take a look at Incus I guess!