453.992 Info AppManager.cpp:277: Saving to _autosave3 (blocking).
Factorio crashed. Generating symbolized stacktrace, please wait ...
c:\cygwin64\tmp\factorio-build-oyvgrk\libraries\stackwalker\stackwalker.cpp (924): StackWalker::ShowCallstack
c:\cygwin64\tmp\factorio-build-oyvgrk\src\util\logger.cpp (383): Logger::writeStacktrace
c:\cygwin64\tmp\factorio-build-oyvgrk\src\util\logger.cpp (534): Logger::logStacktrace
c:\cygwin64\tmp\factorio-build-oyvgrk\src\util\logging.cpp (96): Logging::logAndAbortOrThrow
c:\cygwin64\tmp\factorio-build-oyvgrk\src\util\logging.cpp (90): Logging::logAndAbortOrThrow
c:\cygwin64\tmp\factorio-build-oyvgrk\src\entity\railsignalbase.cpp (363): RailSignalBase::checkConsistency
c:\cygwin64\tmp\factorio-build-oyvgrk\src\entity\railsignalbase.cpp (67): RailSignalBase::save
c:\cygwin64\tmp\factorio-build-oyvgrk\src\entity\railchainsignal.cpp (48): RailChainSignal::save
c:\cygwin64\tmp\factorio-build-oyvgrk\src\surface\chunk.cpp (101): Chunk::save
c:\cygwin64\tmp\factorio-build-oyvgrk\src\surface\surface.cpp (765): Surface::save
c:\cygwin64\tmp\factorio-build-oyvgrk\src\map\map.cpp (1339): Map::save
c:\cygwin64\tmp\factorio-build-oyvgrk\src\scenario\scenario.cpp (1001): Scenario::saveMap
c:\cygwin64\tmp\factorio-build-oyvgrk\src\scenario\scenario.cpp (897): Scenario::saveAs
c:\cygwin64\tmp\factorio-build-oyvgrk\src\scenario\parallelscenariosaver.cpp (99): ParallelScenarioSaver::doSave
c:\program files (x86)\microsoft visual studio\2017\buildtools\vc\tools\msvc\14.15.26726\include\thr\xthread (230): std::_LaunchPad<std::unique_ptr<std::tuple<void (__cdecl TransferSource::)(void),TransferSource >,std::default_delete<std::tuple<void (__cdecl TransferSource::)(void),TransferSource > > > >::_Go
c:\program files (x86)\microsoft visual studio\2017\buildtools\vc\tools\msvc\14.15.26726\include\thr\xthread (209): std::_Pad::_Call_func
minkernel\crts\ucrt\src\appcrt\startup\thread.cpp (115): thread_start<unsigned int (__cdecl)(void * __ptr64)>
ERROR: SymGetLineFromAddr64, GetLastError: 487 (Address: 00007FFE3B247974)
00007FFE3B247974 (KERNEL32): (filename not available): BaseThreadInitThunk
ERROR: SymGetLineFromAddr64, GetLastError: 487 (Address: 00007FFE3B82A271)
00007FFE3B82A271 (ntdll): (filename not available): RtlUserThreadStart
Stack trace logging done
456.863 Error RailSignalBase.cpp:363: incomingBlock->getOutboundSignals().count(const_cast<RailSignalBase>(this)) was not true
Logger::writeStacktrace skipped.
456.863 Error CrashHandler.cpp:181: Map tick at moment of crash: 86401
456.863 Error Util.cpp:97: Unexpected error occurred. If you're running the latest version of the game you can help us solve the problem by posting the contents of the log file on the Factorio forums.
Please also include the save file(s), any mods you may be using, and any steps you know of to reproduce the crash.
466.045 Uploading log file
466.075 Error CrashHandler.cpp:229: Heap validation: success.
466.077 Creating crash dump.
466.319 CrashDump success

Hey! Is there any indication that this has something to do with this mod? I at least don't really see anything...

it happend when using the train bridge.
While having a cargo ship driving almost under it. and A train driving over the Bridge i think

okay, i will eventually look into it, but since i am not home for the next week and a half it will take some time. do ypu have a safefile by any chance, to reproduce the error?