Cubase Pro 15 Separate Stems Crashing Repeatedly

[Featherlightstudio]

New project, 2 total tracks ( 1 stereo music backing track 3 mins ) and ( 1 mono vocal track )
No effects in the new project, all tracks routed to stereo master.
Highlight stereo music track, select Separate Stems and choose all 4 options

Crashes repeatedly every time.

The .ips log shows Cubase 15 as the CRASH THREAD

All logs sent to Steinberg
Mac Studio running 13.7

[Johnny_Moneto]

I would additionally upload a couple of the crash report files here. It sounds redundant but I’d still recommend to do it.

[Featherlightstudio]

Thanks for the reply…as a text file or as the actual .ips file??

[Johnny_Moneto]

.ips always.

[Featherlightstudio]

.Cubase 15-2025-11-16-120144.ips (102.2 KB)

.Cubase 15-2025-11-16-122047.ips (71.0 KB)

.Cubase 15-2025-11-16-121122.ips (105.8 KB)

[ChrisW]

I’m hitting the same problem with files that were fine with Logic Pro. Selecting two options works, but crashes with all four. Just one audio track - imported WAV. Latest version of MacOs on a Mac Mini M2 Pro.

[Johnny_Moneto]

Cubase Pro 15 Separate Stems Crashing Repeatedly

I would additionally upload a couple of the crash report files here. It sounds redundant but I’d still recommend to do it.

[ChrisW]

Thanks, I’ll do that,

[ChrisW]

Cubase 15-2025-12-17-135502.ips (131.9 KB)

Cubase 15-2025-12-16-155806.ips (131.1 KB)

[Neal_Davis]

FYI:

C15 Crashing When Separate Stems

This might be a sample-rate-related issue. The original project that crashed every time (right at the end of the process) when I asked to separate stems was set to 48 kHz and I dragged in and converted a 44.1 kHz WAV file to 48 kHz. I just tried the same thing keeping the project and the file at 44.1 kHz and the stem separation worked right away.

[jmtapadas]

As it ever worked well? I ask this because it’s a fairly cpu-intensive process. I’m on PC, wich went some tweaks including undervolting. But when I bought Spectralayers, and tried the unmix feature, it went BSOD many times until I upped the voltage enough to sustain the process - wich it never did using only Nuendo, and it being an audio-only PC. So could it be something CPU related?