Hi, For your information, Ctrl+Alt+PgUp/PgDown always works. So I am downgrading this bug's severity to minor.
But indeed, the announced shortcut does not work consistently. There are several bugs opened upstream, see below. https://bugs.gnucash.org/show_bug.cgi?id=411910 https://bugs.gnucash.org/show_bug.cgi?id=372387 https://bugs.gnucash.org/show_bug.cgi?id=450717 Best, Bertrand