Rig disappears when switching to edit mode

As the title says, I took parts of a rig from one file to a new simple object (this object is in solid mode) in another file, Visibility is set to “in front”. It is selected in object mode. When I switch to edit mode, it disappears. See screenshots! Would somebody explain this? Thanks in advance,
P.S. I`m in Ver. 3.3.1

Did you try to unhide it (alt + H)? maybe you hit “H” unintentionaly while everything was selected.

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That´s it! My bad, thx