i found maybe the error.
In file editor.css (components/com_sppagebuilder/assets/css/editor.css) the css is:
#sp-pagebuilder-view.builder-iframe-desktop {
min-width: 100% !important
}
#sp-pagebuilder-view.builder-iframe-laptop {
min-width: 100% !important
}
So are equals.
but if i change in:
#sp-pagebuilder-view.builder-iframe-desktop {
min-width: 1400px !important;
width: 100% !important;
}
#sp-pagebuilder-view.builder-iframe-laptop {
width: 1399px !important;
}
i respect the brackpoints in editor view.
Can you check with developers team?
thanks