Have had this happen to us also...We play on a Microsoft Realm, on Xbox. worked on our library for days, getting all the librarians to have books we wanted. Went off looking for Ice, and when we came back (days later) half the librarians were gone.
The ones with nametags seemed to still be there, however one of our players on the realms said that 2 horses that had saddles on the dissappeared from the stables.
I believe this is probably part of the bug at MCPE-144208
MarriedInMinecraft
Have had this happen to us also...We play on a Microsoft Realm, on Xbox. worked on our library for days, getting all the librarians to have books we wanted. Went off looking for Ice, and when we came back (days later) half the librarians were gone.
The ones with nametags seemed to still be there, however one of our players on the realms said that 2 horses that had saddles on the dissappeared from the stables.
I believe this is probably part of the bug at MCPE-144208