@Devids10 Are you using the sidebar as 'pinned' or in 'autohide' mode?
Opera One is not my main browser and I don't use it daily.
But recently while checking the 'redesigned' History sidebar panel I had some glitches regarding the sidebar (autohide mode). Sometimes opened panels didn't hide while clicking outside, sometimes didn't open, sometimes crashed after pressing sidebar icons again.
I didn't report it because I have no steps to reproduce.
*For example right now after clicking 'here and there' I have the empty sidebar setup pane.
2025-11-17_132936.png