Wrong size after zpool expand

[LarsR]

That’s a known bug, discribed at length here

24.10 RC2 Raidz expansion caused miscalculated available storage

[image] ok, it seems like the UI is reflecting accurately what ZFS thinks - only issue is ZFS is wrong. With a size of 98.2T, the pool shows the total capacity of all 6 disks, but is reporting 39.2T of available space, which is the space of 3 disks - except I should have the space of 4 disks. Is there any way to fix this?

TLDR: The data before expansion is written with a different parity ratio then the data after expansion which leads to the difference in shown size.