We are sorry for the trouble. Make sure you are using the recent version 22.2.20191 for Acrobat/Reader DC application. Go to Help > Check for updates and reboot the computer once and see if that helps.
What happens when you try to remove the added signatures under Fill and Sign option? Do you get any error message? If yes, please share the screenshot of the same for a better understanding.
It is downloaded from the creative cloud and is up to date.
It shows the 2 signatures but does nothing when pressing the remove sign. Similar to the below. Once you add the second signature the add signature sign dissapears and the 2 signature are unable to be removed. Tried pressing/holdng/moving the remove symbol but none work.