Hi Marco,
Updated to 13.0.1 this morning.
When I search (Hit CTRL+F to open it), click in the text on the main window to select/edit something and click back the search popup, this one reactivate (redraw, I see title bar changing color back to "active")... and disappear right away, forcing me to re-hit CTRL+F to reopen it.
Also tested and same in 32 bits.
Last edited by Nicolas D.; 02/20/19 04:08 PM.