[Q] Titanium Backup Stopped Removing System Apps topic

I've flashed multiple custom ROMs on my Nexus 7 and am currently on ParanoidAndroid (kitkat). However for the last couple of ROMs I flashed, Titanium Backup suddenly stopped removing system apps on the tablet, despite it working on all my other Android devices. Did something change on the Nexus 7 that cause it to break Titanium Backup? I mean I know what I'm doing since I've been using this app ever since I got my Galaxy S 5 years ago. Yep it is rooted with SuperSU installed and granting permissions to Titanium Backup. Also have BusyBox installed just in case the Nexus 7 needs it, even though normally Titanium Backup doesn't need it.