Why Unreal Engine 5 has too many issues?

Development Programming & Scripting
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Hello, Unreal Engine Community.

Since I have lots of issues with Unreal 5, couldn’t decide which one to ask. I made a lot of digging about a lot of issues but couldn’t find anything proper. I love Unreal, it has became the core of my life. I dreamt about this kind of graphic engine usage opportunity in my whole childhood :slight_smile:

I was using Unreal 4 professionally, before 5. I’ve created few projects with UE5 since it’s preview version. Actually, none of them worked correctly. Not talking about the output here. Somehow I managed to get working packages but development parts was extremely hard. Because UE5 crashes every twenty minutes at least. Sometimes it gives a crash report and sometimes it just stays unresponsive. I’m actually unable to detect what’s causing those problems because sometimes it crashes while I’m working on a skeletal mesh, sometimes when I try to open an empty Blueprint Class from Content Browser, sometimes when I run the scene.

So, UE5 crashes randomly and I think it is not directly related to any action we do. As I can see, most people trying to change Directx11 from 12 to reduce crashing and disable SM6 as well. Also reducing Scalability is one of the offerings. I didn’t try this options, they may reduce crashing or may not. I made some search about DirectX and if disabling Directx12 reduces the crashing, then the problem must be SM6, not DirectX.

I create all of my projects withing UE4. I use UE5 when I need some exceptional visuals to render. Since it’s next-gen and crashing a lot, I am not able to optimize a game project as much as I do in UE4… I’ve tried that :skull_and_crossbones:. I’ve tried that with every version of UE5. When a new version of UE5 comes up, I make the update and try creating few visuals.

I believe UE5 still should be called as Preview or something. Remember what they say? “Agents are bad, but whatever you do stay the hell away from marketing.” :100:

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Greetings @JPTInteractive

I’m sorry to hear that you’ve had the bad experiences with the crashes. I understand fully how it feels to run into these and in spite of all of the changes and fixes you try, it doesn’t resolve the problem. But, if you’re wanting to continue to use UE5 I’d be more than happy to look into the errors and crashes that you’re experiencing and see if we can help get them resolved.

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Of course I want to use and I will be using :slight_smile: there are no errors like %50 of the time. UE5 just stays unresponsive for no reason. When I get crash while changing values of nanite as an example, I restart and do the same things and it doesn’t crash. Like I said, it is totally random. Few days ago, I wanted to use UE5 SK_Manny rig for easily retarget animations to metahuman in UE4. Right click to Manny > Asset Actions > Export then UE5 stays unresponsive. It doesn’t even gives a crash. I force to end it’s task, restart project, do the same thing and successfuly take the export. What is changed? Actually nothing. Right click to content browser > Create a new blueprint class as Actor > Double click to open it then UE5 stays unresponsive. Restart and do the same thing, it opens the blueprint with no problem. Since I used every single UE5 version from the beginning, same things were happenning. Also thought about if my machine was the problem, but I don’t think it is. Because the machine got formatted to new Windows 11 systems few times along UE5 updates. Also, my brother has a computer with Rtx4090 and i9-13900K and UE5 still the same in that machine. I have rtx3060 btw.

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Does these crashes only happen on your main project or on a new project(with basic floor level) as well ?

50% crash and every 20mins is not normal and seem to be a project only issue or hardware issue.

Does any issue happen on other engine or video games ?

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The SK_Manny thing I mentioned was a new project and it has literally nothing more than ThirdPerson Template. I thought about hardware issues too but tried UE5 in different machines too, even in an Apple Mac once. There are some guys I know from University. They are educating about Unreal 4 & 5, Unity, Blender etc. I asked them if they use UE5 with no problem and they told me they can’t, there is always some crashing and freeze problems. They offered to disable DirectX12 and SM6 and reduce Scalability, but I didn’t tried that because if there is no Directx12, I rather to use UE4. All those feedbacks from Turkiye by the way. I’m just started to think the machines on Turkiye has problems with UE5 but this sounds like a bit absurd. You guys really can use UE5 without random crashes and freezes? Edit: I have zero problem with UE4. Actually it is hard to get crash from UE4 :slight_smile: Other programs are fine too.

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I see, i was using ue4 too serveral years ago and never experience a crash.

I have used ue5 since 5.1 launched and so far few crash like Invalid PNG header when i was trying to load image as Byte, or when importing a bad skeleton of my character.
Otherwise random crash happen rarely where it just crash upon loading the project at 0%.
Freeze never happen to me, even if i do large loop, it can barely handle it for my pc but doesnt freeze.

(since then i made the habit to always clear Fix Redirector whenever i rename or move files) So far no more unexpected crash with that habit.
I also made a 2nd habit of when i have to implement a new thing, i just do it on a copy project, after all is working properly, i add them to the main project.

Back then in ue4, i didnt had these habit because it was always working.
From what i seen on this forum, it often a user error, last week was because of adding a new feature “Capsule Shadow” which wasnt set properly i believe giving 0 byte size ( i had to search that error msg from ue5 cpp to really get what it mean )

It also possible driver/software of graphic are just getting more complex and can have fault on the hardware/software itself(i seen these with AMD card specially where it cause crash on video game)
back then during ue4 era, we had driver of size 200MB, today it close 1GB.

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Some useful habits you got there :slight_smile: as you mentioned I also don’t need that kind of habits in UE4. Still using it with love :heavy_heart_exclamation: and I can catch that graphical quality most of the times as UE5 offers (not always). I’m sure the Core UE Developer Team will handle all the problems in time.

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Yes,not very good.
Especially the draw rect node in the HUD is annoying.
It asks us to put in the first point and the hight and width of the box.
What kind of calculation is that…,why not just ask for first point and second point,like the draw line node does.
And the angle between two vectors.
unreal didn’t make a build-in node,it’s so common,we have to calculate on our own…
And I highly recommend unreal to have a Aerodynamic component built-in,similar to the projectile movement, rotate movement,etc…they’re so common to use.
If have all those,it would be awesome.

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Most projects I’ve worked on in UE5 all do seem to get the same DirectX12 crash after some time.
But for whatever reason, the current project I’m on runs very well. Not had a single ‘not my fault’ crash. Not sure if the devs behind it made some required engine changes or not.

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Unreal has lots of advanced components that so easy to use but more would be nice yeah :slight_smile:

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This is funny :smiley: because I had the same thing and the project got only few crashes without my fault. It wasn’t an advanced project but it was close to be an advanced and complicated. I still think about that project, like “Why it worked properly?” :smiley:

I think the UE Core Devs told marketing to they are not tend to publish UE5 as “Release Version” for at least about one or two more years but they didn’t listen :smile:

This is very common, marketing people tend to screw up the work of creative people (or make everything hard for them). Remember the conversation about “Marketing People” in Matrix Awakens video? We wouldn’t ask “Why UE5 has more issues besides UE4”, if they’d still calling it as “Preview” version. This is my my point of view of course.

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Hello again, I wanted to share a video about what I mentioned on this section:

I was added that Generic Anim Pack few days ago so it was there. I open UE5, select an animation from that pack and retargeted to UE5 Skeleton as I do in the video. You see it was completely unresponsive in the beginning. I started to record a video and did the same thing but it worked now. What changed? I can’t understand why it becomes unresponsive with some basic works and even hard to understand why it works after restart.

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Very simple, tell internally to stop adding new features and declare 1 stable version which receive fixes. Coz 2024 was the worst year ever, none can be release after 5.2, jumping forward version after version is worse guys. We are completely desperated.

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"If it aint broke, don’t fix it. The last stable version ,was 4.72.2 The code for 5 , was already in place. Lumum, and global illumination was in the code, . and could have been added in 4.73,.74, E.TC. I am not sure where NANITE came in. Maybe, it was put it the code, to make it sound cooler?

Version 5? is /was not ready for prime time. Most of the advanced features don’t work right, or are buggy. I can confirm all the stuttering and stability issues. None of that got fixed. And , instead of dealing with and correcting the core issues; EPIC, continued to pump out full revisions, adding more features (bloat) , which simply made things more unstable. Adding more stuff, does not increase performance. It just leads to more headaches, and frustration.

And in the end, users are forced to significantly upgrade their systems, just to run the engine.

5.4 ,and 5.5. Won’t even run properly without 64 Gegs of ram, and a 4090 video card. (16)

Most people can’t afford that.

It’s not practical. I get over 100 frames (W) in 4.27, 32 G, and a 6 G 3060 TI. That’s practical.

THE system requirements for 5.5. are ridiculous.

In the same map, in 5.32 , I get 15-20 frames. How is that an improvement?

Epic , needs to focus on stability , And start cleaning out the code, so the engine will run on an average system.

Right now, I won’t even tough any version of 5.

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Request for LTS versions of UE and marketplace assets.