@alfred It appears you are using the Ordered environment. As such, the Dimensions need to be "locked" to drive the geometry otherwise you just override the label hence the underline. When you click your existing dimensions, notice the "unlocked" lock button on the dialog. Click it to "locked".
When placing a new dimension, there is a lock on the Command Bar. Make sure that is "locked" before placing the dimensions and then you will not have to lock them one by one.
Ken Production: SE 2019 MP8, Testing: SE 2020 http://Grundey.blogspot.com