[Magisk] spambayes:
Sorry. Forgotten about that crucial component: logs.

Here's Magisk.log

07-18 05:15:25.030 256 256 I Magisk : Magisk v17.3(17302) daemon started
07-18 05:15:25.040 260 260 I Magisk : Magisk v17.3(17302) logger started
07-18 05:15:25.040 256 257 I Magisk : ** post-fs-data mode running
07-18 05:15:25.050 256 257 I Magisk : Create /data/adb/magisk.img with size 64M
07-18 05:15:25.410 256 257 I Magisk : * Mounting /data/adb/magisk.img
07-18 05:15:25.860 256 257 I Magisk : * Running post-fs-data.d scripts
07-18 05:15:25.860 256 257 I Magisk : * Running module post-fs-data scripts
07-18 05:15:25.860 256 257 I Magisk : * Loading modules
07-18 05:15:25.860 256 273 I Magisk : * Starting MagiskHide
07-18 05:15:25.860 256 273 I Magisk : hide_utils: Hiding sensitive props
07-18 05:15:25.860 256 273 I Magisk : hide_list add: [com.google.android.gms.unstable]
07-18 05:15:25.880 256 273 E Magisk : proc_monitor: Your kernel doesn't support mount namespace :(
07-18 05:15:27.269 256 423 I Magisk : ** late_start service mode running
07-18 05:15:27.269 256 423 I Magisk : * Running service.d scripts
07-18 05:15:27.269 256 423 I Magisk : * Running module service scripts
07-18 05:15:27.309 256 427 I Magisk : * Starting MagiskHide
07-18 05:15:27.309 256 427 I Magisk : hide_utils: Hiding sensitive props
07-18 05:15:27.309 256 427 I Magisk : hide_list: [com.google.android.gms.unstable]
12-13 13:49:42.708 256 427 E Magisk : proc_monitor: Your kernel doesn't support mount namespace :(
12-13 14:13:36.144 10007 10007 W Magisk : su: request rejected (10270->0)
12-13 14:14:39.314 11782 11782 W Magisk : su: request rejected (10214->0)
12-13 14:14:57.874 12127 12127 W Magisk : su: request rejected (10214->0)
12-13 14:15:28.094 12962 12962 W Magisk : su: request rejected (10314->0)

Here's logcat:

[ 12-13 14:26:51.478 8069: 8069 W/Magisk ]

su: request rejected (10270->0)

[ 12-13 14:27:04.118 1067: 1466 D/ActivityManager ]

startProcessLocked calleePkgName: com.topjohnwu.magisk, hostingType: broadcast

[ 12-13 14:27:04.278 1067: 1466 I/ActivityManager ]

Start proc com.topjohnwu.magisk for broadcast com.topjohnwu.magisk/a.h: pid=8360 uid=10182 gids={50182, 9997, 1028, 1015, 1023, 3003} abi=armeabi-v7a

[ 12-13 14:27:05.428 8360: 8360 D/ResourcesManager ]

creating new AssetManager and set to /data/app/com.topjohnwu.magisk-1/base.apk

[ 12-13 14:27:06.438 1067: 1506 D/ResourcesManager ]

creating new AssetManager and set to /data/app/com.topjohnwu.magisk-1/base.apk

[ 12-13 14:27:12.578 1067: 1590 D/ActivityManager ]

startService callerProcessName:com.topjohnwu.magisk, calleePkgName: com.topjohnwu.magisk

[ 12-13 14:27:12.578 1067: 1590 D/ActivityManager ]

caller:android.app.ApplicationThreadProxy@8153da, r.packageName :com.topjohnwu.magisk

[ 12-13 14:27:19.568 9244: 9244 E/Magisk ]

write failed with 32: Broken pipe

[ 12-13 14:27:19.568 9244: 9244 E/Magisk ]

readlink /proc/6485/cwd failed with 2: No such file or directory

[ 12-13 14:27:19.568 9244: 9244 E/Magisk ]

read failed with 9: Bad file number

[ 12-13 14:27:19.568 9244: 9244 E/Magisk ]

read failed with 9: Bad file number

[ 12-13 14:27:19.568 9244: 9244 E/Magisk ]

read failed with 14: Bad address

[ 12-13 14:27:19.568 9244: 9244 E/Magisk ]

read failed with 14: Bad address

[ 12-13 14:27:19.568 9244: 9244 E/Magisk ]

dup2 failed with 9: Bad file number

[ 12-13 14:27:19.568 9244: 9244 E/Magisk ]

dup2 failed with 9: Bad file number

[ 12-13 14:27:19.568 9244: 9244 E/Magisk ]

dup2 failed with 9: Bad file number

[ 12-13 14:30:44.102 1067: 1174 W/PackageManager ]

Unknown permission android.permission.FOREGROUND_SERVICE in package com.topjohnwu.magisk

[ 12-13 14:30:44.102 1067: 1174 W/PackageManager ]

Unknown permission android.permission.USE_FINGERPRINT in package com.topjohnwu.magisk

[ 12-13 14:30:44.102 1067: 1174 W/PackageManager ]

Unknown permission android.permission.REQUEST_INSTALL_PACKAGES in package com.topjohnwu.magisk

[ 12-13 14:30:46.122 1067: 1067 I/AppOps ]

Pruning old package com.topjohnwu.magisk/10337: new uid=10182

[ 12-13 14:31:08.090 1067: 1125 W/PackageManager ]

Unknown permission android.permission.FOREGROUND_SERVICE in package com.topjohnwu.magisk

[ 12-13 14:31:08.090 1067: 1125 W/PackageManager ]

Unknown permission android.permission.USE_FINGERPRINT in package com.topjohnwu.magisk

[ 12-13 14:31:08.090 1067: 1125 W/PackageManager ]

Unknown permission android.permission.REQUEST_INSTALL_PACKAGES in package com.topjohnwu.magisk

[ 12-13 14:32:25.420 5298: 5365 D/ResourcesManager ]

creating new AssetManager and set to /data/app/com.topjohnwu.magisk-1/base.apk

[ 12-13 14:32:47.010 7792: 7792 W/Magisk ]

su: request rejected (10214->0)

[ 12-13 14:32:51.900 1498: 1498 I/Timeline ]

Timeline: Activity_launch_request id:com.topjohnwu.magisk time:155242

[ 12-13 14:32:51.940 1067: 1083 V/ApplicationPolicy ]

isApplicationStateBlocked userId 0 pkgname com.topjohnwu.magisk

[ 12-13 14:32:51.950 1067: 1083 I/ActivityManager ]

START u0 {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.topjohnwu.magisk/a.c (has extras)} from uid 10011 on display 0

[ 12-13 14:32:51.970 1067: 1083 D/ResourcesManager ]

creating new AssetManager and set to /data/app/com.topjohnwu.magisk-1/base.apk

[ 12-13 14:32:52.290 1067: 1825 I/ActivityManager ]

Start proc com.topjohnwu.magisk for activity com.topjohnwu.magisk/a.c: pid=7969 uid=10182 gids={50182, 9997, 1028, 1015, 1023, 3003} abi=armeabi-v7a