App icon will not update to a new version

[habermas-labs]

I'm creating an app with Tauri and I am having a devil of a time trying to get my application icon to switch to my newest version (which happens to be the second version -- the first was just too ugly). Here's a summary of all that I've tried:

Icon shows correctly in Resource Hacker and taskbar but wrong icon in exe Properties and file association dialog
Environment:

Windows 11
Tauri 2.x
MSI installer target

Symptoms:

Correct icon shows in taskbar and Start Menu shortcut
Correct icon confirmed embedded in exe via Resource Hacker
Wrong icon (from an earlier build) shows in exe Properties dialog and Windows "Choose default app" file association dialog

Things tried:

Verified all source icon files in src-tauri/icons/ are correct by opening each one
Verified target/release/resources/icon.ico is correct
Deleted entire src-tauri/target/ folder and rebuilt from scratch multiple times
Deleted %LocalAppData%\IconCache.db and rebooted
Restarted Windows Explorer from Task Manager multiple times
Ran ie4uinit.exe -show as Administrator
Uninstalled cleanly before every reinstall
Removed icon.icns from build and config
Confirmed tauri.conf.json icon list is correct
Confirmed main.wxs SourceFile path points to correct icon.ico

Question: What else could cause Windows to display a stale icon in Properties and file association dialogs when the embedded icon is correct?

[FabianLars]

iirc there were some registry entries used as icon cache as well but i can't remember what it was called. maybe do a registry search for your app's exe name and see if you can find it.

still weird that nothing of what you tried helped, that's more than what's usually needed 🤔

[habermas-labs]

hehe ... I guess this gets chalked up to a rookie mistake. The icon.ico file was corrupted. Never checked the file size. Thanks for thinking it through.