2 of 3 users in our office encountered this problem.
Here's the fix we finally figured out after we realized one user still had Java 6 on his computer:
1. Uninstall Java 7 (in Control Panel, Programs and Features)
2. Install Java 6 (we used this one
http://www.oldapps.com/java.php?old_java=8346)
3. Install AC16 hotfix
4. Install Java 7
http://java.com/en/
AC19-23 | Win10 Pro | i7-8700K | Quadro P600 | 500gb 960 EVO M2 | Dual 28" 4k Samsung U28E590