Constant crashing on4.11.1

Im very green so Im going through tutorials.
My 2015 rmbp however, has been crashing UE4 quite a bit. Usually after 20 min of use.
Also the material editor does not show the changes applied (just applying a constant3).
Now I have been crashing on start up.

Don’t know how to save the crash report cause the link thing doesn’t work so I took a screenshot of it.

Hi nickp100,

For future reference, you can select all the type in the Crash Reporter Window, cut and paste it into a generic TextEdit doc and post using the tools on this page. However, the most important thing is that you hit “submit” which apparently you did because I was able to find this crash on our Crash Reporter Site.

This is apparently the crash you are experiencing when trying to start the editor: To clarify, are you getting this crash when you are opening the Launcher itself, when opening the Editor through the Launcher, or when opening the project through the Launcher?

There is suspected conflict between UE4.11 and running Metal on Macs running. If you could provide repro steps when this consistently occurs or, better yet, supply a copy of your project where this occurs (+ repro steps) this would greatly help us to pinpoint the exact cause of the issue.

Until then, if you want to start working in UE4 without experiencing this crash, you could get started in UE4.10 until this is resolved. If you would like to send me a link to a zipped copy of your project, you can send that to me in a private message on our forum.

Thanks,

.

Thanks for the reply.
Well the past couple of times it crashed on startup. I was just working on learning how to assign materials so my scenes were all created with assets from the content browser.
Prior to that (and in crashes that I also submitted and should be on file) I was crashing unexpectedly in the material editor.
And the first isssue that I had experienced is (which is still persistent)is that when following the tutorial for making materials the small sphere preview would not change at all, even when trying to change the color. Since Im a noob I wasnt aware that it was a bug so I was looking for ways that I messed it up. Anyways, hoping for a quick resolution and will provide as much feedback as possible.

Would you mind downloading and running the UE4.10 version of the engine and let us know if you experience the same issues with the Material editor?

No problem …will do when I go home from work late tonight.
How do I get that download?

Yes I tried with 4.10.4, and all the problems I previously had seem to be gone so far.No crashing.
The material preview is also working properly now.

A bug related to your crash [UE-29006] is expected to resolve the crash you are experiencing as well. Please download and install the latest update, UE4.11.2, and let me know if this you are still experiencing crashing and issues with the material preview. -Thanks!

no still same problem with mat preview in 4.11.2

The crash and the Material preview are two different issues. The issue you are describing above has been answered on the following thread:

https://answers.unrealengine.com/questions/407310/errors-codes-and-missing-texture-preview-in-materi.html

Answer: “A future version of UE4 will change our shader compiler’s behaviour to fallback to the slower runtime compiled text shader format. However, for UE4.11 you’ll need to install Xcode because Apple doesn’t supply their offline ‘metal’ shader compiler with the OS, only the developer tools.”