issues with UX Builder

when using the ux builder the text editor opens (whether selected or not) and overs the top part of the screen – the full width of the browser. Can’t see what’s under it, clicking else where in the window doesn’t minimise or make it disappear. It’s really frustrating! Can anyone help? is this because I’ve updated the flatsome to 3.7.2?
woocomerce version: 3.5.3
wordpress 5.0.2

i’ve looked and amended settings and nothing has made it disappear …. ??