Forms not showing page breaks after upgrade to 4.4.0

after upgrading to 4.4.0 and switching to composer, existing forms don’t show page breaks as well as conditional fields (‘add fields based on selected values’). Anymore. I did a rebuild cache on all forms but didn’t help.

I’m adding the code js way on wordpress (so not on mautic-landingpage):

Tracking is set-up properly, also emptied browser cache…

Also on newly build forms, page breaks don’t work anymore, regardless if I switch ‘render style’ to yes or no as proposed elsewhere in the forum. Any ideas? Many thx.