ACE was upgraded to version 10.3 in Decmeber 2015. There are over 100 known issues in v10.3. The v10.5 upgrade addresses these issues. Details can be found at the Sakai Confluence site listed below.
Experiencing Other Issues?
If you are experiencing an issue with ACE that prevents proper functioning of a tool, please report the behavior to us as soon as possible (email@example.com or 788-3318). We will work to determine if the item has already been addressed in an available patch or if the item is new.