I suspect the cause is something other than today’s update to Connections since the changes were limited nearly exclusively to the new WP Editor block for Connections. Also, the screenshot shows the Form addon which would have been unaffected to any changes in the core Connections plugin.
You’ll need to share a link to the page with the issue with me so I can take a closer look to determine exactly what the issue is. But, as a guess, I am thinking another plugin or he theme is breaking the styling of that element.
If you can not share a link with me, I suggest trying the conflict tests: