unsupported share protocol

[gilliaef]

Hello,

Upon using the command

Code:

zfs send -vRi Data@manual-20200126 Data@manual-20200127 | zfs recv -Fvd Z-Backup

I get the following line after the replication is terminated

Code:

Unsupported share protocol: 1.

I can't find much information on this in this context... Since the replication is done it isn't much of an issue, but I'd like to know where it's coming from.
Sorry if it's a dumb question, still learning :)

I'm using FreeNAS-11.2-U7