[OnePlus 7 Pro Themes, Apps, and Mods] kgs1992:
Tried it out.

Uninstalled the old overlay. Rebooted. Installed new overlay. Rebooted. Then enabled the overlay.

Running into the same issue.

Stack trace:

10-21 11:35:52.382 22227 22227 E AndroidRuntime: FATAL EXCEPTION: main
10-21 11:35:52.382 22227 22227 E AndroidRuntime: Process: com.android.systemui, PID: 22227
10-21 11:35:52.382 22227 22227 E AndroidRuntime: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ImageView.setVisibility(int)' on a null object reference
10-21 11:35:52.382 22227 22227 E AndroidRuntime:	at com.android.systemui.statusbar.StatusBarMobileView.initViewState(StatusBarMobileView.java:252)
10-21 11:35:52.382 22227 22227 E AndroidRuntime:	at com.android.systemui.statusbar.StatusBarMobileView.applyMobileState(StatusBarMobileView.java:201)
10-21 11:35:52.382 22227 22227 E AndroidRuntime:	at com.android.systemui.statusbar.phone.StatusBarIconController$IconManager.addMobileIcon(StatusBarIconController.java:426)
10-21 11:35:52.382 22227 22227 E AndroidRuntime:	at com.android.systemui.statusbar.phone.StatusBarIconController$IconManager.addHolder(StatusBarIconController.java:392)
10-21 11:35:52.382 22227 22227 E AndroidRuntime:	at com.android.systemui.statusbar.phone.StatusBarIconController$TintedIconManager.onIconAdded(StatusBarIconController.java:245)
10-21 11:35:52.382 22227 22227 E AndroidRuntime:	at com.android.systemui.statusbar.phone.StatusBarIconControllerImpl.addIconGroup(StatusBarIconControllerImpl.java:111)
10-21 11:35:52.382 22227 22227 E AndroidRuntime:	at com.android.systemui.statusbar.phone.KeyguardStatusBarView.onAttachedToWindow(KeyguardStatusBarView.java:447)
10-21 11:35:52.382 22227 22227 E AndroidRuntime:	at android.view.View.dispatchAttachedToWindow(View.java:19701)
10-21 11:35:52.382 22227 22227 E AndroidRuntime:	at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3455)
10-21 11:35:52.382 22227 22227 E AndroidRuntime:	at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3462)
10-21 11:35:52.382 22227 22227 E AndroidRuntime:	at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3462)
10-21 11:35:52.382 22227 22227 E AndroidRuntime:	at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3462)
10-21 11:35:52.382 22227 22227 E AndroidRuntime:	at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2242)
10-21 11:35:52.382 22227 22227 E AndroidRuntime:	at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1929)
10-21 11:35:52.382 22227 22227 E AndroidRuntime:	at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:7987)
10-21 11:35:52.382 22227 22227 E AndroidRuntime:	at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1154)
10-21 11:35:52.382 22227 22227 E AndroidRuntime:	at android.view.Choreographer.doCallbacks(Choreographer.java:977)
10-21 11:35:52.382 22227 22227 E AndroidRuntime:	at android.view.Choreographer.doFrame(Choreographer.java:893)
10-21 11:35:52.382 22227 22227 E AndroidRuntime:	at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:1139)
10-21 11:35:52.382 22227 22227 E AndroidRuntime:	at android.os.Handler.handleCallback(Handler.java:883)
10-21 11:35:52.382 22227 22227 E AndroidRuntime:	at android.os.Handler.dispatchMessage(Handler.java:100)
10-21 11:35:52.382 22227 22227 E AndroidRuntime:	at android.os.Looper.loop(Looper.java:214)
10-21 11:35:52.382 22227 22227 E AndroidRuntime:	at android.app.ActivityThread.main(ActivityThread.java:7682)
10-21 11:35:52.382 22227 22227 E AndroidRuntime:	at java.lang.reflect.Method.invoke(Native Method)
10-21 11:35:52.382 22227 22227 E AndroidRuntime:	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:516)
10-21 11:35:52.382 22227 22227 E AndroidRuntime:	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:950)