App loses route model binding w/ subdomain routing [Laravel 11]

I've been trying to setup subdomains in a Laravel 11 app. The routing works and the app loads. However, any route using route/model binding receives the error below. It happens for any route/model bound route, not just this one.

// example error:
App\JobListings\Http\Controllers\Company\ShowJobListingCandidatesController::__invoke(): Argument #2 ($jobListing) must be of type App\Models\JobListing, string given

This is my route configuration, and I've tried setting middleware priority as the docs (and numerous threads) have mentioned to do.

// route config:
 ->withRouting(
        commands: __DIR__ . '/../routes/console.php',
        health: '/up',
        using: function () {
            // Company routes
            Route::domain('{slug}' . '.' . config('app.domain'))
                ->middleware([
                    'web',
                    SetDefaultCompanyRouteParameters::class,
                    ResolveCompanyFromSlug::class,
                ])
                ->group(base_path('routes/web/company/web.php'));

            // App routes
            Route::domain(config('app.subdomain') . '.' . config('app.domain'))
                ->middleware('web')
                ->group(base_path('routes/web/app/web.php'));

            // Bare routes
            Route::domain(config('app.domain'))
                ->middleware('web')
                ->group(base_path('routes/web.php'));
        }
    )
    ->withMiddleware(function (Middleware $middleware) {
        $middleware->web(append: [
            TeamMiddleware::class,
            \App\Http\Middleware\BaseHandleInertiaRequests::class,
            \Illuminate\Http\Middleware\AddLinkHeadersForPreloadedAssets::class,
        ]);

        $middleware->priority([
            \Illuminate\Routing\Middleware\SubstituteBindings::class,
            SetDefaultCompanyRouteParameters::class,
            ResolveCompanyFromSlug::class,
        ]);
    })

I'm setting URL::defaults in the SetDefaultCompanyRouteParameters like so:

// SetDefaultCompanyRouteParameters
public function handle(Request $request, Closure $next): Response
    {
        if ($request->attributes->get('currentCompany')) {
            // https://github.com/tighten/ziggy?tab=readme-ov-file#default-parameter-values
            URL::defaults(['slug' => $request->attributes->get('currentCompany')->slug]);
        }

        return $next($request);
    }

And resolving company slugs like so:

ResolveCompanyFromSlug

public function handle(Request $request, Closure $next): Response
    {
        $slug = $request->route('slug');

        $company = Company::where('slug', $slug)->first();

        // TODO: Determine how to handle this case.
        if (! $company) {
            abort(404, 'Company not found.');
        }

        $request->attributes->add(['currentCompany' => $company]);

        return $next($request);
    }

I've tried different sequencing of the middleware, tinkered with the priority order, and have tried a handful of other things I've sen mentioned in other articles to no avail.

Has anyone ran into this before and know what the fix is? It's specific to something with subdomains _somewhere, because if I revert to a commit before subdomains then app runs just fine (albeit without subdomains).