[Android Q&A, Help & Troubleshooting] devsk:
I am sort of in a pickle right now and need help. I have P3XL with Android Q Beta 6 running. For some reason I had to factory reset the phone. I used Titanium Backup to create backups for all my apps and data and then did factory reset. After factory reset and rooting, TB is not able to run properly (can't backup or restore). I get an initial screen which is all empty (it typically shows Overview) showing "All done!" and selecting Batch Actions throws me back to empty "All done!" screen instead of showing me the screen of various action scenarios to backup and restore with count of apps.

I see this in the logcat:

08-17 21:09:50.760 1353 1507 W InputDispatcher: channel 'c98d7ae com.keramidas.TitaniumBackup/com.keramidas.TitaniumBackup.MainActivity (server)' ~ Consumer closed input channel or an error occurred. events=0x9
08-17 21:09:50.760 1353 1507 E InputDispatcher: channel 'c98d7ae com.keramidas.TitaniumBackup/com.keramidas.TitaniumBackup.MainActivity (server)' ~ Channel is unrecoverably broken and will be disposed!
08-17 21:09:50.761 1353 1540 I WindowManager: WIN DEATH: Window{c98d7ae u0 com.keramidas.TitaniumBackup/com.keramidas.TitaniumBackup.MainActivity}
08-17 21:09:50.761 1353 1540 W InputDispatcher: Attempted to unregister already unregistered input channel 'c98d7ae com.keramidas.TitaniumBackup/com.keramidas.TitaniumBackup.MainActivity (server)'
08-17 21:09:51.675 1353 1540 I ActivityTaskManager: START u0 {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.keramidas.TitaniumBackup/.MainActivity bnds=[854,2457][1123,2852]} from uid 10152
08-17 21:09:51.703 1353 1381 I ActivityManager: Start proc 15741:com.keramidas.TitaniumBackup/u0a208 for activity {com.keramidas.TitaniumBackup/com.keramidas.TitaniumBackup.MainActivity}
08-17 21:09:51.808 15741 15741 I com.keramidas.TitaniumBackup.MainActivity: Main Activity is being created for the first time => scheduling next wake-up ...
08-17 21:09:51.849 1353 11536 W DevicePolicyManager: Package com.keramidas.TitaniumBackup (uid=10208, pid=15741) cannot access Device IDs
08-17 21:09:51.851 2078 2260 W TelephonyPermissions: reportAccessDeniedToReadIdentifiers:com.keramidas.TitaniumBackup:getDeviceId:isPreinstalled=false:isPrivApp=false
08-17 21:09:51.855 15741 15768 I o.co : [Licensing] No cache file: /storage/emulated/0/data/com.keramidas.TitaniumBackup/licensing-cache.xml
08-17 21:09:51.855 15741 15768 I o.co : [Licensing] Deleting non-valid cache file: /storage/emulated/0/data/com.keramidas.TitaniumBackup/licensing-cache.xml
08-17 21:09:51.859 15741 15768 W System.err: ERROR: Could not open license file: /data/user/0/com.keramidas.TitaniumBackup/files/license.txt
08-17 21:09:51.903 1353 1379 I ActivityTaskManager: Displayed com.keramidas.TitaniumBackup/.MainActivity: +222ms
08-17 21:09:52.025 1353 1540 I ActivityTaskManager: START u0 {act=android.intent.action.VIEW dat=file:///data/local/tmp/com.keramidas.TitaniumBackup-install.apk typ=application/vnd.android.package-archive} from uid 10208
08-17 21:09:52.025 15741 15741 W o.eu : [COLOR="Red"]android.content.ActivityNotFoundException: No Activity found to handle Intent[/COLOR] { act=android.intent.action.VIEW dat=file:///data/local/tmp/com.keramidas.TitaniumBackup-install.apk typ=application/vnd.android.package-archive }
08-17 21:09:52.025 15741 15741 W o.eu : at com.keramidas.TitaniumBackup.MainActivity.ᐧ(Source:1776)
08-17 21:09:52.025 15741 15741 W o.eu : at com.keramidas.TitaniumBackup.MainActivity.ˊ(Source:83)
08-17 21:09:52.025 15741 15741 W o.eu : at com.keramidas.TitaniumBackup.MainActivity.ˊ(Source:581)
08-17 21:09:52.039 1353 1540 I ActivityTaskManager: START u0 {act=com.keramidas.TitaniumBackupAddon.ASK_FOR_PERMISSIONS} from uid 10208
08-17 21:09:52.040 15741 15792 E com.keramidas.TitaniumBackup.MainActivity:[COLOR="Red"] Failed to trigger permission requests within TB add-on[/COLOR]
08-17 21:09:52.040 15741 15792 E com.keramidas.TitaniumBackup.MainActivity: android.content.ActivityNotFoundException: No Activity found to handle Intent { act=com.keramidas.TitaniumBackupAddon.ASK_FOR_PERMISSIONS }
08-17 21:09:52.040 15741 15792 E com.keramidas.TitaniumBackup.MainActivity: at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:2051)
08-17 21:09:52.040 15741 15792 E com.keramidas.TitaniumBackup.MainActivity: at android.app.Instrumentation.execStartActivity(Instrumentation.java:1709)
08-17 21:09:52.040 15741 15792 E com.keramidas.TitaniumBackup.MainActivity: at android.app.Activity.startActivityForResult(Activity.java:5173)
08-17 21:09:52.040 15741 15792 E com.keramidas.TitaniumBackup.MainActivity: at android.app.Activity.startActivityForResult(Activity.java:5131)
08-17 21:09:52.040 15741 15792 E com.keramidas.TitaniumBackup.MainActivity: at android.app.Activity.startActivity(Activity.java:5502)
08-17 21:09:52.040 15741 15792 E com.keramidas.TitaniumBackup.MainActivity: at android.app.Activity.startActivity(Activity.java:5470)
08-17 21:09:52.040 15741 15792 E com.keramidas.TitaniumBackup.MainActivity: at com.keramidas.TitaniumBackup.MainActivity.ʿ(Source:48796)
08-17 21:09:52.040 15741 15792 E com.keramidas.TitaniumBackup.MainActivity: at o.კ.run(Source:1773)
08-17 21:09:52.040 15741 15792 E com.keramidas.TitaniumBackup.MainActivity: at o.ea.run(Source:117)
08-17 21:09:52.250 642 642 E Layer : [Surface(name=AppWindowToken{dc579fc token=Token{1771aef ActivityRecord{ee5abce u0 com.keramidas.TitaniumBackup/.MainActivity t47}}})/@0x7e61fa9 - animation-leash#0] No local sync point found
08-17 21:09:55.826 1353 5660 I ActivityTaskManager: START u0 {cmp=com.keramidas.TitaniumBackup/o.ｃ} from uid 10208

I am using the latest Canary build of Magisk to get the root on Q Beta's. Magisk root is working fine in all the apps.

Any ideas why this could be happening?