2021.6.4 Mac OS Big Sur

Hi, updated to 2021.6.4 and it is crashing non stop, on multiple files.

I have done a re-install, and still have the same issues.

Anyone else have similar issues? Below is the first bunch of lines from theerror message.

Process: ZBrush [586]
Path: /Applications/ZBrush 2021/ZBrush.app/Contents/MacOS/ZBrush
Identifier: com.pixologic.zbrush
Version: 2021.6.4 (2021.6.4)
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: ZBrush [586]
User ID: 501

Date/Time: 2021-05-13 18:28:59.007 +0100
OS Version: macOS 11.3.1 (20E241)
Report Version: 12
Bridge OS Version: 5.3 (18P4556)
Anonymous UUID: 4D84ED3F-C45F-878A-9336-9E287255410A

Time Awake Since Boot: 290 seconds

System Integrity Protection: enabled

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

Exception Codes: EXC_I386_GPFLT

Termination Signal: Segmentation fault: 11
Termination Reason: Namespace SIGNAL, Code 0xb
Terminating Process: exc handler [586]

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 com.pixologic.zbrush 0x000000010a244436 UndoMemFileOptimizer_WriteMem(AMem*, AObj*) + 38
1 com.pixologic.zbrush 0x000000010a240a96 AUndoFiles::Do_Action(int, long long, AObj*, AObj**, unsigned int*, int) + 726

Can anyone help? I have sent message to pixologic team too.

Anyone willing to have a look at the project file and see if there is any issues?


Welcome to ZBC. :slight_smile:

I’m sorry you are having problems. For things of this sort the best thing is to start a conversation over at Pixologic Support. That way we shall be able to best able to assist you.


Hi @robertjamesgibbs,
the Segmentation fault is due to wrong use of malloc when writing in the memory.
you can pack your project in a zip file then upload it on ZBC, and do the same for the Support team in your message.
I can at least tell you if i can load the project or not, but i am not on MAC OS.
Hope it Helps

Hello @robertjamesgibbs

As Marcus mentioned, technical issues with ZBrush should be directed to Pixologic Support. The Community Usage Questions forums are unlikely to be able to help you with system specific problems, and we do not provide technical Support for ZBrush over the forums.

You can just go to the Support site, and Start a Conversation.

Thank you!