I recently purchased DisplayFusion for the Monitor Split and launch to certain monitor functions and after it updated earlier this week I cannot Maximize in a split monitor (it goes to the whole monitor) and I cannot set applications to launch to the splits anymore.

Name: DisplayFusion Pro 7.2
• Name Data: DisplayFusion
• Build Date: Jul 24, 2015 19:44
• Operating System: Microsoft Windows NT 6.1.7601 Service Pack 1 (6.1.7601.65536)
• Operating System Name: Microsoft Windows 7 Enterprise

For Example I have 1 monitor split into 3 monitors (3.1, 3.2, and 3.3) I had Notepad++ Set to always launch to monitor 3.3 maximized, but now it maximized to the whole monitor 3. The same goes if I try to just manually maximize it in the monitor 3.3 space.

I also encountered this problem after the update.
A clean installation of DisplayFusion fixed it for me, you could try giving that a go while waiting for time to advance to regular working hours again

I uninstalled DF from "Programs and Features" (Win 7) NOT deleting my settings (you will be asked if you want to do so - read carefully before confirming!)
Then I manually downloaded the latest version from this website and installed it again. This did it for me. Maybe you're lucky and it will help you too...

Good luck and kind regards