Laravel 5.4 route not working on apache server vhost: 404: NotFoundHttpException

Been stuck on this for the better part of the day... Can anyone think of what might be wrong? I have a very straightforward route:

Route::get('incidents/{incident}', 'IncidentsController@show');

It works fine in my testing environment. I'm using route model binding with the Incident eloquent model. In production it's barfing out the RouteCollection NotFoundHttpException when it redirects to the url:

https://example.com/application/incidents/1411667

Not that it would matter, but the incident does exist in the database. When I run php artisan route:list on the server, it shows that the route exists. All other routes are working. I am using the web middleware on the Route::group that this is part of. I have tried all the obvious artisan commands: route:clear, route:cache, cache:clear, view:clear, clear-compiled, config:clear, optimize... AllowOveride All is in the apache conf for this vhost. I checked for other caches, including OPcache and it looks like there aren't any set up.

via Chebli Mohamed