Steps to Reproduce
Log in to a demo OOB instance using Internet Explorer 11.
import the attached sys_template XML record or add the Description Multi Line Text field to an existing template on a task record.
Save the template.
Note that the multi-line field does not have the resize feature, but only displays the scrolling arrows
Use Firefox or Chrome rather than IE 11.
Also related to KB0551043 (PRB636084); however, the workaround to resize the browser window for that issue might not work for the current issue in all browsers.
After carefully considering the severity and frequency of the issue, as well as the the cost and risk of attempting a fix, a decision has been made not to address this issue in any current or future releases. We do not make this decision lightly and we apologize for any inconvenience. If you have any questions regarding this problem or incident, please contact Customer Support.
Related Problem: PRB640458