Failed executing external process for 'Light Transport' job.

Unity Engine
,
1

After many successful bakes, baking now fails with this error:

8105777--1049378--upload_2022-5-6_3-3-55.png

8105777--1049375--upload_2022-5-6_3-3-23.png

Failed executing external process for ‘Light Transport’ job.
0x00007ff616c1a53d (Unity) StackWalker::GetCurrentCallstack
0x00007ff616c21299 (Unity) StackWalker::ShowCallstack
0x00007ff617b85de3 (Unity) GetStacktrace
0x00007ff61820f47d (Unity) DebugStringToFile
0x00007ff6179a779e (Unity) JobManager::UpdateFunction
0x00007ff6167af260 (Unity) JobQueue::Exec
0x00007ff6167b11b1 (Unity) JobQueue::Steal
0x00007ff6167af5f0 (Unity) JobQueue::ExecuteJobFromQueue
0x00007ff6167afabb (Unity) JobQueue::ProcessJobs
0x00007ff6167b1b0f (Unity) JobQueue::WorkLoop
0x00007ff6169a77d7 (Unity) Thread::RunThreadWrapper
0x00007ffbb696244d (KERNEL32) BaseThreadInitThunk
0x00007ffbb7cedf88 (ntdll) RtlUserThreadStart

I’m not sure what is causing this, but this problem has appeared in many versions over the years. Any ideas how to fix this?

2

It’s the infamous RtlUserThreadStart issue… Hard to tell what could be causing it exactly without taking a look at the project first. Could you please report a bug? Our customer QA will take a look.

3

Not sure but I see it is around since Unity 5 and although in the issue tracker I have seen at least 2 claims that it was fixed, it is still affecting people.

Why can’t there be a permanent solution after so many years?
I understand it is project based, but still…

It is a big problem as it affects both CPU and GPU baking.

I will submit a bug.