Plug-In Test Host quit unexpectedly

Hello All,

I’m a newbie to VST development. I downloaded the latest VST SDK and installed the VST3PluginTestHost app. When I tried to execute it I got the following stack dump:


Translated Report (Full Report Below)

Process: VST3PluginTestHost [1531]
Path: /Applications/VST3PluginTestHost.app/Contents/MacOS/VST3PluginTestHost
Identifier: com.steinberg.vst3.plugintesthost
Version: 3.10.0.6 (3.10.0.6)
Code Type: X86-64 (Native)
Parent Process: launchd [1]
User ID: 501

Date/Time: 2025-08-14 14:07:57.5873 -0400
OS Version: macOS 15.6 (24G84)
Report Version: 12
Bridge OS Version: 9.6 (22P6083)
Anonymous UUID: 35AB56F6-A485-63F9-0136-7CB38EEE0CCC

Time Awake Since Boot: 960 seconds

System Integrity Protection: enabled

Crashed Thread: 0 Dispatch queue: com.apple.main-thread

Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000000
Exception Codes: 0x0000000000000001, 0x0000000000000000

Termination Reason: Namespace SIGNAL, Code 11 Segmentation fault: 11
Terminating Process: exc handler [1531]

VM Region Info: 0 is not in any region. Bytes before following region: 4528865280
REGION TYPE START - END [ VSIZE] PRT/MAX SHRMOD REGION DETAIL
UNUSED SPACE AT START
—>
__TEXT (graphics) 10df10000-10eac8000 [ 11.7M] r-x/r-x SM=COW /Applications/VST3PluginTestHost.app/Contents/MacOS/VST3PluginTestHost

I assume that the installation pkg script checks for processor type since it didn’t prompt me for cpu type.

Can someone help me out please.

Thank You,

Tony

Hi, please attach the full .ips crashlog file, thanks.

I’m seeing a similar crash on macOS 26.0.1. I have not previously tried running the test host on this laptop, an M2 MacBook Pro.

vstplugintesthost.ips (77.0 KB)

Thanks, we will have a fix shortly.

1 Like

Any update on this?

Seeing a similar null pointer issue on M2 macOS 15.6.1

Attached .ips crashlog in case it is helpful.

VST3PluginTestHost-2025-10-20-213334.ips (39.0 KB)

Should be fixed with the latest SDK update.