What does "The <item> disappears" mean?

[yyt16384]

Sometimes I see a lot of "The ... disappears" message. I can't see any visible changes in the map, and nothing nearby is lost. So what does this mean?

[PowerWyrm]

No room on the floor for monster drops probably.

[MattB]

Sometimes I see a lot of "The ... disappears" message. I can't see any visible changes in the map, and nothing nearby is lost. So what does this mean?

What version/options are you playing?

[yyt16384]

No room on the floor for monster drops probably.

I didn't kill anything at that time.

What version/options are you playing?

I'm playing 3.5.1 release. I don't see any options related to this. However, it seems to only happen if I have used Enlightenment on that level. It didn't happen many times, so I can't be sure.

[MattB]

Could be a thief, for instance, picking stuff up out of sight? Or a Xorn, say, crushing stuff?

[Raajaton]

Possibly referring to the message you see when a nearby monster teleports?

[Tibarius]

re: items disappearing

This messages also shows up, if an invisible monster picks something up.