Unable to rotate model about Z-axis after update

I'm unable to rotate the model about the Z-AXIS after the update. I can use pan & rotate as usual, but not rotate about Z axis (imagine axis going straight through the display). Typically I can do this by rotating with my mouse outside the display sphere. 

The keyboard command is CRTL+SHIFT+ArrowLeft/Right. I can no longer do this with my mouse after the update. Can anyone help fix this?

Edu 3DEXPERIENCE CATIA 3DEXPERIENCE