Recently, after installing ue4.25, I had a problem moving the project I was working on on ue4.23 to 4.25 and running it on my phone.
Normally I keep getting the following output log and this issue has not been resolved yet.
--------- beginning of crash
F/DEBUG : *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
F/DEBUG : Build fingerprint: 'samsung/j5y17ltelgt/j5y17ltelgt:9/PPR1.180610.011/J530LKLU5CTB1:user/release-keys'
F/DEBUG : Revision: '7'
F/DEBUG : ABI: 'arm'
F/DEBUG : pid: 3998, tid: 4043, name: Thread-6 >>> com.YourCompany.Delete <<<
F/DEBUG : signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x38
F/DEBUG : Cause: null pointer dereference
F/DEBUG : r0 ad3b3e00 r1 00000000 r2 00000000 r3 ae6a2a10
F/DEBUG : r4 000000e3 r5 000000e2 r6 00000000 r7 d5e43bf0
F/DEBUG : r8 b0f12780 r9 f1973d94 r10 ae6a28d0 r11 d7b4b348
F/DEBUG : ip d5d07548 sp d7b4b248 lr d07db834 pc d07fef08
F/DEBUG :
F/DEBUG : backtrace:
F/DEBUG : #00 pc 065bdf08 /data/app/com.YourCompany.Delete-fQPSQKv4CnelwmlgVqhLxA==/lib/arm/libUE4.so (offset 0x51ac000) (FAsyncPackage::PreLoadObjects()+1400)
F/DEBUG : #01 pc 065aca40 /data/app/com.YourCompany.Delete-fQPSQKv4CnelwmlgVqhLxA==/lib/arm/libUE4.so (offset 0x51ac000) (FAsyncLoadingThread::ProcessAsyncLoading(int&, bool, bool, float, FFlushTree*)+8360)
F/DEBUG : #02 pc 065aad38 /data/app/com.YourCompany.Delete-fQPSQKv4CnelwmlgVqhLxA==/lib/arm/libUE4.so (offset 0x51ac000) (FAsyncLoadingThread::ProcessAsyncLoading(int&, bool, bool, float, FFlushTree*)+928)
F/DEBUG : #03 pc 065b402c /data/app/com.YourCompany.Delete-fQPSQKv4CnelwmlgVqhLxA==/lib/arm/libUE4.so (offset 0x51ac000) (FAsyncLoadingThread::TickAsyncLoading(bool, bool, float, FFlushTree*)+468)
F/DEBUG : #04 pc 065b3180 /data/app/com.YourCompany.Delete-fQPSQKv4CnelwmlgVqhLxA==/lib/arm/libUE4.so (offset 0x51ac000) (FAsyncPackage::PostLoadDeferredObjects(double, bool, float&)+9936)
F/DEBUG : #05 pc 065c3a60 /data/app/com.YourCompany.Delete-fQPSQKv4CnelwmlgVqhLxA==/lib/arm/libUE4.so (offset 0x51ac000) (_ZN19FAsyncLoadingThread11LoadPackageERK7FStringPK5FGuidPKDs13TBaseDelegateIvJRK5FNameP8UPackageN19EAsyncLoadingResult4TypeEEE13EPackageFlagsii+36)
F/DEBUG : #06 pc 068553b4 /data/app/com.YourCompany.Delete-fQPSQKv4CnelwmlgVqhLxA==/lib/arm/libUE4.so (offset 0x51ac000) (StaticLoadClass(UClass*, UObject*, char16_t const*, char16_t const*, unsigned int, UPackageMap*)+240)
F/DEBUG : #07 pc 06853188 /data/app/com.YourCompany.Delete-fQPSQKv4CnelwmlgVqhLxA==/lib/arm/libUE4.so (offset 0x51ac000) (FindPackage(UObject*, char16_t const*)+508)
F/DEBUG : #08 pc 0a1a4b60 /data/app/com.YourCompany.Delete-fQPSQKv4CnelwmlgVqhLxA==/lib/arm/libUE4.so (offset 0x51ac000) (UEngine::LoadMap(FWorldContext&, FURL, UPendingNetGame*, FString&)+1832)
F/DEBUG : #09 pc 0a1a0e54 /data/app/com.YourCompany.Delete-fQPSQKv4CnelwmlgVqhLxA==/lib/arm/libUE4.so (offset 0x51ac000) (UEngine::SetClientTravel(UPendingNetGame*, char16_t const*, ETravelType)+356)
F/DEBUG : #10 pc 09763f54 /data/app/com.YourCompany.Delete-fQPSQKv4CnelwmlgVqhLxA==/lib/arm/libUE4.so (offset 0x51ac000) (UEngine* CastChecked<UEngine, UObject>(UObject*)+228)
F/DEBUG : #11 pc 051bc3c4 /data/app/com.YourCompany.Delete-fQPSQKv4CnelwmlgVqhLxA==/lib/arm/libUE4.so (offset 0x51ac000) (AndroidMain(android_app*)+3288)
F/DEBUG : #12 pc 051bb310 /data/app/com.YourCompany.Delete-fQPSQKv4CnelwmlgVqhLxA==/lib/arm/libUE4.so (offset 0x51ac000)
D/UE4 : [2020.08.09-05.27.51:916][ 0]LogTcpMessaging: Started Connection to '127.0.0.1:53522'
D/UE4 : [2020.08.09-05.27.51:917][ 0]LogTcpMessaging: Discovered node 'C7310BF745377A3F22104296C55DED1C' on connection '127.0.0.1:53522'...
The other thing to tell you guys is that the phone I ran is Android and the engine versions used are 4.23.1 and 4.25.3.
If there is anything else I need to inform you, I will answer as much as possible.