ZFS - Problem removing files after changing the compression type

[Mario Olofo]

Hello guys,

I'm configuring a new installation of FreeBSD-12.0-RELEASE and installed
with ZFS for the root file system.
I run the command zfs set compression=lz4 root, and after this, the system
become a little weird.
I tried to test some npm install to see if the compression was working and
it is, but when I try to run some commands (ie. ng serve), it fails with
I/O error.
Deleted the node_modules directory and when I tried to delete the .npm dir,
the system returns "Directory not empty".
When run as sudo rm  -rf, the result is "Unknown error: 122"

I did something that I was not supposed to?
In the btrfs one can change the compression on the fly without issues
because of metadata, don't know if zfs behaves this way too.

My system is a Dell G3, with a i5 8gen and an SSD on the m.2 slot running
the FreeBSD (on UFS the notebook freezes and halt when I run npm install).
Gentoo and Windows running on the same SSD and it's all good.

Thank you,
Best reggards,

Mario