404 Errors

I have nova v3 and been using it for some time. I feel like this problem started about a year ago and it feels like its getting worse. I am starting to pull my hair out on this one.

I have 30 sites on different servers but using the same code base. All seem to be experiencing this same issue. After a period of time when going to the nova root, I get redirected to the nova 404 page. If I look in the Chrome console it's because the nova-api is 404.

If I php artisan route:show sure enough all the nova routes are missing. If I do a route:clear they all come back. Then a few minutes to a few days later, the problem is back again. It's a constant annoying battle to clear the routes.

I have App\Providers\NovaServiceProvider::class, in config/app.

Does anyone else have thoughts?