[Xposed General] Fif_:
I think I know why XPosed doesn't work on the OP5 with OOS 4.5.10:

This seems to be caused by Direct Boot aka File-Based Encryption.

/data/data is not available until the user has entered his passcode, but XPosed starts anyways.

Grepping through the logcat:

01-01 06:28:36.209 594 687 I Magisk : xposed_25: exec [post-fs-data.sh]
01-01 06:28:36.231 594 687 I Magisk : xposed_25: constructing magic mount structure
01-01 06:28:36.291 594 687 I Magisk : bind_mount: /system/lib/libxposed_art.so
01-01 06:28:36.303 594 687 I Magisk : bind_mount: /system/framework/XposedBridge.jar
01-01 06:28:36.307 594 687 I Magisk : bind_mount: /system/lib64/libxposed_art.so
09-12 16:18:54.300 881 881 D XposedStartupMarker: Current time: 1505258334, PID: 881
09-12 16:18:54.300 881 881 I Xposed : -----------------
09-12 16:18:54.300 881 881 I Xposed : Starting Xposed version 87.3 (Systemless by topjohnwu), compiled for SDK 25
09-12 16:18:54.300 881 881 I Xposed : Device: ONEPLUS A5000 (OnePlus), Android version 7.1.1 (SDK 25)
09-12 16:18:54.300 881 881 I Xposed : ROM: ONEPLUS A5000_23_170825
09-12 16:18:54.300 881 881 I Xposed : Build fingerprint: OnePlus/OnePlus5/OnePlus5:7.1.1/NMF26X/08141919:user/release-keys
09-12 16:18:54.300 881 881 I Xposed : Platform: arm64-v8a, 64-bit binary, system server: yes
09-12 16:18:54.300 881 881 I Xposed : SELinux enabled: yes, enforcing: yes
09-12 16:18:54.325 881 881 I Xposed : -----------------
09-12 16:18:54.325 881 881 I Xposed : Added Xposed (/system/framework/XposedBridge.jar) to CLASSPATH
09-12 16:18:54.325 881 881 D AndroidRuntime: >>>>>> START de.robv.android.xposed.XposedBridge uid 0 <<<<<<
09-12 16:18:54.332 1180 1180 E Xposed : Could not open /data/data/de.robv.android.xposed.installer/log/error.log: No such file or directory
09-12 16:18:55.242 881 881 I Xposed : Detected ART runtime
09-12 16:18:55.272 881 881 I Xposed : Found Xposed class 'de/robv/android/xposed/XposedBridge', now initializing
09-12 16:18:55.491 881 881 E Xposed : Cannot load any modules because /data/data/de.robv.android.xposed.installer/conf/modules.list was not found
09-12 16:19:04.312 882 882 I Xposed : -----------------
09-12 16:19:04.312 882 882 I Xposed : Starting Xposed version 87.3 (Systemless by topjohnwu), compiled for SDK 25
09-12 16:19:04.312 882 882 I Xposed : Device: ONEPLUS A5000 (OnePlus), Android version 7.1.1 (SDK 25)
09-12 16:19:04.312 882 882 I Xposed : ROM: ONEPLUS A5000_23_170825
09-12 16:19:04.312 882 882 I Xposed : Build fingerprint: OnePlus/OnePlus5/OnePlus5:7.1.1/NMF26X/08141919:user/release-keys
09-12 16:19:04.312 882 882 I Xposed : Platform: arm64-v8a, 32-bit binary, system server: no
09-12 16:19:04.313 882 882 I Xposed : SELinux enabled: yes, enforcing: yes
09-12 16:19:04.316 882 882 I Xposed : -----------------
09-12 16:19:04.316 882 882 I Xposed : Added Xposed (/system/framework/XposedBridge.jar) to CLASSPATH
09-12 16:19:04.316 882 882 D AndroidRuntime: >>>>>> START de.robv.android.xposed.XposedBridge uid 0 <<<<<<
09-12 16:19:05.145 882 882 I Xposed : Detected ART runtime
09-12 16:19:05.162 882 882 I Xposed : Found Xposed class 'de/robv/android/xposed/XposedBridge', now initializing
09-12 16:19:05.342 882 882 E Xposed : Cannot load any modules because /data/data/de.robv.android.xposed.installer/conf/modules.list was not found

The module configuration list needs to be read from /data/data/de.robv.android.xposed.installer/conf/modules.list, but the file is not there when Xposed boots...

Anyone knows how to run OOS in Full Disk Encryption mode?