Suddenly content dissapear from the clipboard about gnome-clipboard-history HOT 3 CLOSED

Maybe you cleared your ~/.cache directory? That's where the clipboard data is stored (which is probably a mistake honestly, it should be in /.local/share).

from gnome-clipboard-history.

it should be in /.local/share

I think $XDG_STATE_HOME would be even more appropriate.

The XDG Base Directory Specification says:

$XDG_STATE_HOME defines the base directory relative to which user-specific state files should be stored. If $XDG_STATE_HOME is either not set or empty, a default equal to $HOME/.local/state should be used.

The $XDG_STATE_HOME contains state data that should persist between (application) restarts, but that is not important or portable enough to the user that it should be stored in $XDG_DATA_HOME. It may contain:

• actions history (logs, history, recently used files, …)
• current state of the application that can be reused on a restart (view, layout, open files, undo history, …)

from gnome-clipboard-history.

Yeah, though I think there's some argument to be made that clipboard data shouldn't be deleted unless the user specifically requests that. A bit like terminal history: it'd be weird if that data just suddenly disappeared.

from gnome-clipboard-history.