[Galaxy Ace II Android Development] lv-xda:
Problems with SU

After upgrading from 20180324 to latest ROM (20181023), kernel (20181105, sdcard_only), SU seems to be broken. TitaniumBackup complains (no longer works),

File explorer doesn't get (switch to) root access too. Spirit UL, etc...

Advanced root is enabled in A2N.

Some related (i believe) logcat messages:

D/su ( 7993): starting daemon client 10057 10057
E/su ( 7993): connect failed with 2: No such file or directory
W/System.err( 7963): java.lang.Exception: Unexpected end of stream !
W/System.err( 7963): at o.ej.run(Source:102)
W/System.err( 7963): java.io.IOException: write failed: EPIPE (Broken pipe)
W/System.err( 7963): at libcore.io.IoBridge.write(Unknown Source)
W/System.err( 7963): at java.io.FileOutputStream.write(Unknown Source)
W/System.err( 7963): at java.io.OutputStreamWriter.flushBytes(Unknown Source)
W/System.err( 7963): at java.io.OutputStreamWriter.flush(Unknown Source)
W/System.err( 7963): at java.io.BufferedWriter.flush(Unknown Source)
W/System.err( 7963): at o.eg.ˊ(Source:112)
W/System.err( 7963): at o.eh$If.<init>(Source:254)
W/System.err( 7963): at o.eh.<init>(Source:338)
W/System.err( 7963): at o.eg.<init>(Source:80)
W/System.err( 7963): at o.eg.<init>(Source:67)
W/System.err( 7963): at o.er.ˊ(Source:303)
W/System.err( 7963): at o.კ.ˊ(Source:4416)
W/System.err( 7963): at o.ᐯ.run(Source:396)
W/System.err( 7963): at o.cj.ˊ(Source:489)
W/System.err( 7963): at o.cj.ˊ(Source:428)
W/System.err( 7963): at o.კ.ˊ(Source:391)
W/System.err( 7963): at o.ᓿ.run(Source:1378)
W/System.err( 7963): java.lang.Exception: Unexpected end of stream !
W/System.err( 7963): at o.ej.run(Source:102)
W/System.err( 7963): Caused by: libcore.io.ErrnoException: write failed: EPIPE (Broken pipe)
<...>
D/su ( 8509): su invoked.
D/su ( 8509): starting daemon client 10028 10028
E/su ( 8509): connect failed with 2: No such file or directory
W/ConsoleBuilder( 8413): Nepavyko paleisti „Root“ prieigos režimu. Keičiama į saugų režimą.
W/ConsoleBuilder( 8413): com.cyanogenmod.filemanager.console.ConsoleAllocException: Console allocation error.
W/ConsoleBuilder( 8413): at com.cyanogenmod.filemanager.console.shell.ShellConsole.alloc(Unknown Source)
W/ConsoleBuilder( 8413): at com.cyanogenmod.filemanager.console.ConsoleBuilder.createPrivilegedConsole(Unknown Source)
W/ConsoleBuilder( 8413): at com.cyanogenmod.filemanager.console.ConsoleBuilder.createAndCheckPrivilegedConsole(Unknown Source)
W/ConsoleBuilder( 8413): at com.cyanogenmod.filemanager.console.ConsoleBuilder.createAndCheckPrivilegedConsole(Unknown Source)
W/ConsoleBuilder( 8413): at com.cyanogenmod.filemanager.console.ConsoleBuilder.changeToPrivilegedConsole(Unknown Source)
W/ConsoleBuilder( 8413): at com.cyanogenmod.filemanager.activities.preferences.GeneralPreferenceFragment$1.onPreferenceChange(Unknown Source)
W/ConsoleBuilder( 8413): at android.preference.Preference.callChangeListener(Unknown Source)
W/ConsoleBuilder( 8413): at android.preference.ListPreference.onDialogClosed(Unknown Source)
W/ConsoleBuilder( 8413): at android.preference.DialogPreference.onDismiss(Unknown Source)
W/ConsoleBuilder( 8413): at android.app.Dialog$ListenersHandler.handleMessage(Unknown Source)
W/ConsoleBuilder( 8413): at android.os.Handler.dispatchMessage(Unknown Source)
W/ConsoleBuilder( 8413): at android.os.Looper.loop(Unknown Source)
W/ConsoleBuilder( 8413): at android.app.ActivityThread.main(Unknown Source)
W/ConsoleBuilder( 8413): at java.lang.reflect.Method.invokeNative(Native Method)
W/ConsoleBuilder( 8413): at java.lang.reflect.Method.invoke(Unknown Source)
W/ConsoleBuilder( 8413): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(Unknown Source)
W/ConsoleBuilder( 8413): at com.android.internal.os.ZygoteInit.main(Unknown Source)
W/ConsoleBuilder( 8413): at dalvik.system.NativeStart.main(Native Method)
W/ConsoleBuilder( 8413): Caused by: com.cyanogenmod.filemanager.console.ConsoleAllocException: Shell not started.

What happened and what can i check for more information to solve this/my issue?