I have a ~600 records tremodel loaded correctly, no warnings and show black on wayland and rows oversized on X11. Happends in fixed and non fixed row height. If I just load 450 records (650 total) the problem is removed.
I try to reverse the data in the model to be sure is not a data problem but with last records and 450 lines also show OK.
Oversized X11 pic of the treeview. Wayland show full black the Scrolled Window.
With this simplest Glade file also happends (is wrapped into a container glade file).
Im geting this on console:
gtk_list_store_get_value: assertion ‘column < priv->n_columns’ failed
Let’s see…one important thing to note is that GtkTreeView supports the GtkScrollable interface. What does that mean? That means that you can directly add a GtkTreeView inside a GrkScrolledWindow, without the GtkViewport in-between. The GtkViewport is not needed and could even cause the problems you described.