Screen redrawing issue after upgrading to 6.0.0

[lyovushka]

I tried to upgrade to latest textual (v6.3.0) in netbook, but I got an issue with redrawing that seems to have appeared in v6.0.0. It is triggered by the search functionality. Although I am able to reproduce it quite consistently, the trigger conditions are a bit involved.

I have a demo below. Essentially after I scroll the main container back and forth and hide the search widget (triggered by pressing escape) the main container is not properly redrawn. The scrolling part is important as the problem isn't triggered without it.

Screencast.From.2025-10-13.21-21-45.mp4

I am still trying to come up with a minimal example, but maybe this would ring some bells as to what the problem might be.

[Zaloog]

I could reproduce it, but looking into the code, couldnt find anything that looks odd (besides the absense of from imports which makes some sections quite more challenging to read, e.g. textual.reactive.reactive instead of just reactive :P ).

I remember I had some issues with the custom hidden class which sets display: none; when it came to some focusing behavior...
I switched it just to widget.display = True/False, which just does the same though (I just checked the source).

I also cloned netbook and tried it with the widget.display method, but could still reproduce the issue.
Maybe someone else has some more insights.