I am using 3.2.2 on Mac and having the same issue with Label Node where I have the following code
if playername == "Player1":
statelabel.text = "Player 1"
statelabel.text = "Player 2"
The Label shows the 1 and 2 characters overlapping each other ie. the rendered text area is not cleared properly.
Note. I have the same issue with the RichTextLabel
Looks like a 3.2.2 bug to me