Tahoe release 26.0 privacy and security hangs when launched

[ziggy762]

Privacy and Security in settings does not initialize properly.  Icons do not display and right scrollbar does not function to give access to items.  This behavior last seen in Ventura.

Here is part of spindump: 

Date/Time:        2025-09-18 17:45:51.219 -0300
End time:         2025-09-18 17:47:01.036 -0300
OS Version:       macOS 26.0 (Build 25A354)
Architecture:     x86_64h
Report Version:   66

Data Source:      Stackshots
Shared Cache:     30BB8006-73D6-3EFC-8061-1346E86B262F slid base address 0x7ff809084000, slide 0x9084000 (System Primary)
Shared Cache:     AA04FE42-B5D5-3D6E-8EA6-591463C03340 slid base address 0x7ff82c1f3000, slide 0x2c1f3000 (DriverKit)

Command:          SecurityPrivacyExtension
Path:             /System/Library/ExtensionKit/Extensions/SecurityPrivacyExtension.appex/Contents/MacOS/SecurityPrivacyExtension
Identifier:       com.apple.settings.PrivacySecurity.extension
Version:          1.0 (1)
Build Version:    286
Project Name:     SecurityPref
Source Version:   621000000000000
Architecture:     x86_64
Parent:           launchd [1]
Responsible:      System Settings [902]
PID:              980
Time Since Fork:  73s

Duration:         69.82s
Duration Sampled: 9.89s (process was unresponsive for 60 seconds before sampling)
Steps:            792 (10ms sampling interval)

Hardware model:   MacBookPro16,2
Active cpus:      1
Memory size:      12 GB
HW page size:     4096
VM page size:     4096
Shared cache residency: 22.26% (1158.89 MB / 5206.17 MB)
Boot args:        -v -lilubetaall cpus=1 keepsyms=1 kext-dev-mode=1 debug=0x100 -igfxsklaskbl -disablegfxfirmware -liludbgall liludump=60 

Time Since Boot:  651s
Time Awake Since Boot: 651s
Time Since Wake:  n/a (machine hasn't slept)

Total CPU Time:   9.863s (25.8G cycles, 28.3G instructions, 0.91c/i)
Advisory levels:  Battery -> 3, User -> 2, ThermalPressure -> 0, Combined -> 2
Free disk space:  29.91 GB/62.97 GB, low space threshold 3072 MB
Vnodes Available: 89.43% (176751/197632, 49905 allocated)
Models:           none

Launchd throttled processes:
  locationaccessstored throttled after exit(): throttled samples 1-702, throttled samples 703-792

Preferred User Language: en-CA, en-US
Country Code:     CA
OS Cryptex File Extents: 1

----------------------------------------
Heavy format: stacks are sorted by count
----------------------------------------

 

Process:          SecurityPrivacyExtension (Privacy & Security) [980]
UUID:             E9110013-A10A-3F94-AFA5-DDD70D17EF9E
Path:             /System/Library/ExtensionKit/Extensions/SecurityPrivacyExtension.appex/Contents/MacOS/SecurityPrivacyExtension
Identifier:       com.apple.settings.PrivacySecurity.extension
Version:          1.0 (1)
Build Version:    286
Project Name:     SecurityPref
Source Version:   621000000000000
Shared Cache:     30BB8006-73D6-3EFC-8061-1346E86B262F slid base address 0x7ff809084000, slide 0x9084000 (System Primary)
Architecture:     x86_64
Parent:           launchd [1]
Responsible:      System Settings [902]
RunningBoard Mgd: Yes
UID:              501
Memory Limit:     1000MB
Jetsam Priority:  40
Footprint:        27.47 MB
Time Since Fork:  73s
Num samples:      792 (1-792)
CPU Time:         <0.001s (1369.9K cycles, 409.1K instructions, 3.35c/i)
Note:             Unresponsive for 60 seconds before sampling
Num threads:      4
Note:             1 idle work queue thread omitted
Note:             Workqueue exceeded cooperative thread limit for 792 samples (more swift tasks runnable than allowed to run concurrently)
Note:             Workqueue exceeded active constrained thread limit for 792 samples (more dispatch items runnable than allowed to run)

Does these references indicate a programming error made by Apple?

Note:             Workqueue exceeded cooperative thread limit for 792 samples (more swift tasks runnable than allowed to run concurrently)
Note:             Workqueue exceeded active constrained thread limit for 792 samples (more dispatch items runnable than allowed to run)

Is this a Swift programming error?   

Would appreciate any help to resolve this.

Additionally, clean install does not progress past the Select Country or Region windows to complete installation.

Does anyone have a fix for this.  The spacebar to select fix does nothing to resolve the issue.

Thank you.