5.5.3 Lighting Build Crash

Development Programming & Scripting Blueprint
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1

Current Version 5.5.3 on M1 Mac

Build static lighting:

It exports the lighting data
Builds the lighting
Starts to import the lighting at about 24% the lighting build complete dialog comes up

Then the project crashes everytime.

Anyone else seeing this and is there a solution?

For over a year I have not been able to build static lighting on a Mac using v5+ (4.27 works fine). I had hoped that updated OS, updated xCode and updated Unreal might get me there. At least the lighting now builds rather than just saying it failed. Close but no cigar.

2

Hi there @Max20192011

Can you pull the crash log and post here along with your specs? Thanks!

3

M1 Mac 16GB Sequoia 15.3.1 - MacBook Pro

You will see at the bottom where it crashes with a memory address error. However we do NOT use any C code, this is currently all Blueprints.

Thanks for any advice on this issue.

LOG FILE:

Unlre 553 Crash Log.txt (146.6 KB)

4

Are you using Vulkan, by chance?

5

No, Just Out of the box Unreal on the Mac

6

5.5.4 - Just released and it builds the lighting on the Mac straight out of the box.

First version of 5# to do it, so maybe I can finally retire 4.27. It has been a true workhorse. The M1 Mac is an awesome portable with the battery life for demos, did not want to carry around a PC Portable brick, hence the Mac request.

7

Oh, right on! Well, I’m glad it was resolved in either case!

8

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