Yesterday I was modelling and tried to copy a part of my mesh using Ctrl+C and Ctrl+V buttons but suddenly I've pressed some other keys, and now when I press Ctrl+V I get Vertex pop-up menu:
Also there is the hint in Vertex column:
And if Copy Attributes add-on is enabled I get this pop-up menu when I press Ctrl+C keys:
I reset the settings to default, removed all Blender instances, then istalled 3.6.5 version but nothing changed. In Object Mode copying-pasting through Ctrl+C and Ctrl+V works fine.
Do you have some ideas? Thank you in advance!