Cubase 11 new install - crash

Hi Just purchased 11 pro upgrade from 9, installed on my Mac with Catalina OS, upon startup the app is crashing, C9 and even C10.5 (downloaded and installed) are working fine only C11 is crashing have no idea can someone please help me to understand the problem??

Process: Cubase 11 [929]
Path: /Applications/Cubase 11
Identifier: com.steinberg.cubase11
Version: (
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: Cubase 11 [929]
User ID: 502

Date/Time: 2021-05-15 09:51:27.416 -0700
OS Version: Mac OS X 10.15.7 (19H15)
Report Version: 12
Anonymous UUID: 20EFB5D5-F4E6-69D5-0143-223E6755F6FB

Time Awake Since Boot: 410 seconds

System Integrity Protection: disabled

Crashed Thread: 74 Baios Processing Thread

Exception Codes: KERN_PROTECTION_FAILURE at 0x00007000082b9ff8

Termination Signal: Bus error: 10
Termination Reason: Namespace SIGNAL, Code 0xa
Terminating Process: exc handler [929]

Hi and welcome on the forum,

Could you please attach the source *.crash file?

Mac: macOS Console utility > User Reports folder or Crash Reports in macOS 10.15 (or ~user/Library/Logs/Diagnostic Reports).