Any changes in Sketchup force a leave the page window to come up

Hi I use Sketchup web, currently anything I do that involve putting dimesions into the box in the bottom right eg change the hight with the pull fuction and then pressing enter, causes a window to pop up asking if I want to leave the page. Does any one one why this is happening?

Are you clicking on the measurements box before typing the value? If so, don’t do that, just let go of the mouse, type the number, and press enter.

Which browser are you using?, Edge browser has some issues lately.