Twinmotion 2025.1.1 keeps crashing on my MacBook Pro (M4 Pro, macOS 15.5) — three crashes in 30 minutes

Development Platform & Builds
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1

Hi all,

Twinmotion 2025.1.1 is becoming unusable on my setup. The app crashes randomly—sometimes the moment I click any button, other times after a few minutes of light work. In the last 30 minutes alone it has quit three times, always showing the same low-level thread-stall stack trace:

LoginId: 678a6b4ab7475948ab810ea9862869f0
EpicAccountId: 0a5c87032ef34feb87195f7b5c3bcdf2

Unknown()                          0x18faf43cc  [libsystem_kernel.dylib]
FPThreadEvent::Wait                0x11180db80  [TwinmotionCookedEditor-Mac-Shipping]
LowLevelTasks::FScheduler::StandbyLoop 0x1117b41f8
LowLevelTasks::FScheduler::WorkerMain 0x1117b5538
FThreadImpl::Run                   0x111888760
FRunnableThreadPThread::Run        0x11184e1b4
FRunnableThreadPThread::_ThreadProc 0x11181ef4c
Unknown()                          0x18fb32c0c  [libsystem_pthread.dylib]
Unknown()                          0x18fb2db80  [libsystem_pthread.dylib]

What I’ve already tried (with zero success)

  1. Deleted ~/Documents/Twinmotion 2025/Config.
  2. Verified and fully re-installed Twinmotion via Epic Games Launcher.
  3. Started with Shift-launch (no project auto-load) and ⌥-launch → Raster mode only.
  4. Cleared asset & thumbnail caches.
  5. Updated to macOS 15.5, rebooted, tested in High-Power battery mode and on mains.

Same random crashes—no pattern except that they happen whenever I interact with the UI.

System details

Macbook pro 16, M4 Pro, 48Gb ram, 512Gb. High power plan.

2

Hello I have similar set up with Mac OS 15.5 and M4 MAx, but I dont even can make the twinmotion software to launch.. i have installed a few older versions of Twin motion, but it snot eatiher working… De isntlaled the epic games completly and installed back an still not find a way to make it work… how did you achive that?

3

I think my issue is the same. This is my latest crash report. I have them all the time, making it nearly impossible to do my work. I have done the same things you listed to try and fix the problem but with no success. I have a lot more of these crash reports, but they all seem to lead to a scheduling task error.

LoginId:a51a979f1b4a653def1622XXXXXXXXX
EpicAccountId:a83c7f278dab4fa68e00XXXXXXXXX

Caught signal

Unknown() Address = 0x19f5b53cc (filename not found) [in libsystem_kernel.dylib]
FPThreadEvent::Wait(unsigned int, bool) Address = 0x10fea5b80 (filename not found) [in TwinmotionCookedEditor-Mac-Shipping]
LowLevelTasks::FScheduler::StandbyLoop(LowLevelTasks::Private::FWaitEvent*, LowLevelTasks::Private::TLocalQueueRegistry<1024u, 1024u>::TLocalQueue*, unsigned int, bool) Address = 0x10fe4c0d8 (filename not found) [in TwinmotionCookedEditor-Mac-Shipping]
LowLevelTasks::FScheduler::WorkerMain(LowLevelTasks::Private::FWaitEvent*, LowLevelTasks::Private::TLocalQueueRegistry<1024u, 1024u>::TLocalQueue*, unsigned int, bool) Address = 0x10fe4d538 (filename not found) [in TwinmotionCookedEditor-Mac-Shipping]
FThreadImpl::Run() Address = 0x10ff20760 (filename not found) [in TwinmotionCookedEditor-Mac-Shipping]
FRunnableThreadPThread::Run() Address = 0x10fee61b4 (filename not found) [in TwinmotionCookedEditor-Mac-Shipping]
FRunnableThreadPThread::_ThreadProc(void*) Address = 0x10feb6f4c (filename not found) [in TwinmotionCookedEditor-Mac-Shipping]
Unknown() Address = 0x19f5f3c0c (filename not found) [in libsystem_pthread.dylib]
Unknown() Address = 0x19f5eeb80 (filename not found) [in libsystem_pthread.dylib]

System is a Mac Studio M3 Ultra with 96gs of ram. Running 3 4k monitors. (in a scaled config for larger text)

4

hello, did you find a way to solve this issue… I have try pretty much wjat you listed and no success… and I been try to obtain help, with no success