If you configure a system the special, uncommon way you want, a program isn't going to adapt itself to that. It can't. It does what it's coded to do.
It's illogical to expect software to become aware and change it's programming to fit any given system.
Nobody said anything like this. You are making up some absurd nonsense and malattributing it.
To be clear, 'works on 99.99% of PC's WB is installed on.
The difficulty is that you're currently the only person experiencing this specific issue, and the highly customized nature of your setup makes it unlikely that others will encounter the same thing.
Respectfully, a “logical” mind would recognize that this kind of edge-case failure is often indicative of some latent flawed assumptions regarding some particular programming interface or software/service interaction (IPC/RPC/etc). When those flawed assumptions wind up in shipping software, the software will end up “accidentally working” on the majority of systems where those assumptions hold true despite being technically incorrect under the hood. Finding and fixing these types of flaws makes the software more robust for
everyone, not just me. The fact that it is possible at all for the software to fail silently, at all, from
any triggering condition, should be considered a defect to be fixed.
But with the configuration you’re running - and the number of system-level changes involved, we can’t match your environment closely enough
If […] we find a reproducible case internally
Hi, just checking, did you see the unattended XML I shared here? Drop this file into the root of a Windows 11 24H2 installer image, fire it up in a VM, and you will have an exact duplicate of my install-time settings in maybe an hour tops 
I do agree that it's a waste of time for all involved to be speaking in purely speculative terms as we have been, and as we continue to.
We need explicit debugging output for one specific interaction: whatever happens under the hood when one clicks the “Apply style to desktop” button, where WBConfig is (I assume) invoking the WB Service to Do The Thing via whatever IPC/LPC/RPC mechanism Windows uses. Without that information it is impossible to do more than guess, and guessing is a waste of time.
What I am asking for:
- Use my unattended XML to create a duplicate of my software setup.
- Add or enable debug logging (i.e. to a text file) around what happens when the “Apply style to desktop” button is clicked in WBConfig. Something is invoking something else there, and debug logging will say what that call is and very likely also why it failed.
- If unwilling or unable to do (1), tell me how to enable debug logging in the public build of WB and/or share a debug-enabled build with me here so I may try it and report back.
- Then and only then would be it possible to judge how much work something would take to fix and how many users/scenarios it is likely to affect.
I understand that you have both offered a lot of suggestions, and I am appreciative of that, but from a software-engineering/debugging point of view we haven't tried anything at all. We are at step zero and have been for this entire thread. There are no logs, so how can anyone say anything at all about what is or isn't the trigger and what is or isn't out of scope?