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UE4 Editor Constantly Crashing

For some reason, when trying to move an object in the UE4 editor (Using the standard click/drag), it seems Unreal Engine 4 keeps crashing. Not only do I get the regular program termination, but sometimes it even crashes my entire computer, where only a solid color displays on my screen.

My scene consists of the starter assets for an UE4 project (where the floor that doesn't contain a table has its X and Y scale adjusted to 10) with a Test Pawn object using the code from one of the UE4 tutorials.

Here are my PC specs: Windows 10 Pro (64 bit) Intel i5-6500 (3.2Ghz Quad Core) 8GB DDR4 RAM AMD RX460

If you need more information, please please please don't just ignore this post. Ask for more information if you need it. (Sorry if I'm coming off as desperate here, but Unity's answer community will ignore posts instead of asking for details.)

Does anyone know why this is happening and possibly have any potential fixes? Thank you for taking the time to read my question!

Product Version: UE 4.18
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asked Mar 03 '18 at 04:00 AM in Using UE4

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avatar image GIGA-Money Mar 03 '18 at 04:10 AM

mmm, the only editor crashes I have ever gotten similar to what you have is when a constructor has some bad code in it somewhere. could you make a video, of what your doing? from start to finish. This could be like some hunt for an answer, like Sherlock.

avatar image RandomAnimeGamer Mar 03 '18 at 04:39 AM

When I get a bit more time, I will record that video for you. Do you need me to record from project creation to the point it crashes, or just the action that crashes it?

As for your guess on the crash... by constructor, do you mean the constructor in the project or installation files for UE4 or in a script file in the scene?

avatar image GIGA-Money Mar 05 '18 at 04:08 PM

The constructors in youself made cpp files, the ones you did. I would always check there first. but for that recording just start to finish would be best, (as launch to crash).

avatar image RandomAnimeGamer Mar 17 '18 at 04:08 AM

Sorry for making you wait so long. I was dealing with some issues (and still am) when it comes to certain other parts of the project unrelated to UE4 and that's been taking up time. I will try my best to get a video going as soon as I can.

Since this can range from UE4 crashing to my entire PC crashing, the best way for me to execute this is to record from my laptop webcam to show what my desktop monitor does. Maybe I could even use my Elgato Game Capture HD and record both views.

What mainly confuses me is that the constructor was exactly the same as the tutorial when the crashes happened. It also seems to happen at a near-random occurrence, where sometimes it will crash given the conditions I've outlined and sometimes it won't.

avatar image RandomAnimeGamer Apr 11 '18 at 12:13 AM

A whole month went by because some of my professors gave last-minute announcements and it kept me busy. I've recorded a video where I got UE4 to crash first, then got it to completely crash my desktop (White Screen this time, sometimes it's gray or blue though.) as well.


6:20 - When I've finished showing off code and get into the editor to show a playtest working.

6:40 - I show a birds-eye view of the scene's important features and the objects in it

6:52 - Selecting the object and trying to rotate the camera, only to get UE4 to crash

8:16 - I show a closer view of other objects in the scene (Just the generic starter content)

8:20 - I select the object and instantly try to rotate the camera, only to get a white screen.

Seems the error occurs whenever I'm both in the editor (Not play-testing the game, just in the editor itself) and I rotate the camera with my Pawn object selected. Not sure why that happens, so I've also created two pastebins of my code.

TestPawn.h - https://pastebin.com/c9ttRAJx

TestPawn.cpp - https://pastebin.com/05cajV0S

The only changes I made to these code files were the numbers behind how fast the pawn moves (I was playing around with values). The CameralessPawn class shown in the video is not applied to an object in the scene, but I figured I'd show it off in the video anyways in case that was causing issues.

If you have any questions please let me know. I do want to fix this so I can get started with learning more UE4.

avatar image RandomAnimeGamer May 04 '18 at 01:52 AM

Uh, I get I waited an entire month to post the reply (And I do apologize for that), but do you have any ideas on how to fix the problem given the new information?

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