On Beta 5.
This shows up in Blueprint compiler view and log:
[2809.27][626]BlueprintLog: New page: Compile PersistentLevel_LevelBlueprint
[2809.29][626]LogBlueprint:Error: [compiler] Error Internal compiler error inside CreateExecutionSchedule (site 1); please contact the framework team as we need a repro for this bug!
[2809.29][626]LogBlueprint:Warning: [compiler] Warning [2809.29] Compile of PersistentLevel_LevelBlueprint failed. 1 Fatal Issue(s) 0 Warning(s) [in 9 ms]
And upon restarting the editor, this message is displayed:
Ensure condition failed: ToPin->LinkedTo.Contains(this) [File:D:\BuildFarm\buildmachine_++depot+UE4-Rocket+Beta5\Engine\Source\Runtime\Engine\Private\EdGraph\EdGraph.cpp] [Line: 690]
UEdGraphPin::BreakLinkTo Pin '' on node 'Waveform Manager' not reciprocally linked with pin 'Enter' on node 'Do N'
Stack: Address = 0xe3072a26 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0xe2f8e6c2 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0xe2e77629 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0xe1c08436 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Engine.dll]
Address = 0xe1c08230 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Engine.dll]
Address = 0xe0377ff7 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-BlueprintGraph.dll]
Address = 0xe016e2bb (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-KismetCompiler.dll]
Address = 0xe016e536 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-KismetCompiler.dll]
Address = 0xe015caff (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-KismetCompiler.dll]
Address = 0xe015eef3 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-KismetCompiler.dll]
Address = 0xe0152740 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-KismetCompiler.dll]
Address = 0xe01544c9 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-KismetCompiler.dll]
Address = 0xe01540bc (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-KismetCompiler.dll]
Address = 0xe6ac3115 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-UnrealEd.dll]
Address = 0xe0e54331 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Engine.dll]
Address = 0xe810bde9 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-CoreUObject.dll]
Address = 0xe80bc943 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-CoreUObject.dll]
Address = 0xe80f0a3d (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-CoreUObject.dll]
Address = 0xe81073f4 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-CoreUObject.dll]
Address = 0xe80df244 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-CoreUObject.dll]
Address = 0xe80c7222 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-CoreUObject.dll]
Address = 0xe810bde9 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-CoreUObject.dll]
Address = 0xe80f0c01 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-CoreUObject.dll]
Address = 0xe81073f4 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-CoreUObject.dll]
Address = 0xe80f04f2 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-CoreUObject.dll]
Address = 0xe81085da (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-CoreUObject.dll]
Address = 0xe81cdb99 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-CoreUObject.dll]
Address = 0xe63d567c (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-UnrealEd.dll]
Address = 0xe63c84ed (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-UnrealEd.dll]
Address = 0xe63baba1 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-UnrealEd.dll]
Address = 0xe6650a82 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-UnrealEd.dll]
Address = 0xe641ca17 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-UnrealEd.dll]
Address = 0xda7b29b8 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-LevelEditor.dll]
Address = 0xda788a6a (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-LevelEditor.dll]
Address = 0xe79d92a0 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0xe7c22a1a (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0xe7c26568 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0xe7c0912c (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0xe79d879a (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0xe7a00a9e (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0xe7a7ac1d (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0xe7a732d1 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0xe302cba2 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0xe301f826 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0xe302d5fe (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0xe301cbd2 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0x77719bd1 (filename not found) [in C:\Windows\system32\USER32.dll]
Address = 0x777198da (filename not found) [in C:\Windows\system32\USER32.dll]
Address = 0xe3063f79 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0xe302da4b (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0x3fdc9421 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor.exe]
Address = 0x3fdbed60 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor.exe]
Address = 0x3fdbedca (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor.exe]
Address = 0x3fdcae1b (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor.exe]
Address = 0x3fdcbae3 (filename not found) [in C:\Program Files\Rocket\Engine\Binaries\Win64\RocketEditor.exe]
Address = 0x7781652d (filename not found) [in C:\Windows\system32\kernel32.dll]
Address = 0x7794c541 (filename not found) [in C:\Windows\SYSTEM32\ntdll.dll]
Address = 0x7794c541 (filename not found) [in C:\Windows\SYSTEM32\ntdll.dll]
It happened sporadically for a blueprint I was making which I have since deleted, therefore I have no instructions for reproducing the bug. It has not happened since. My guess is that it had something to do with the loop in my Blueprint, wherein a “Do N times” node was fed by a custom function.
This is not a real pressing issue, as it has not occurred again.