Next 9.4.0 with pkg - Static pages are not found

[nikoskleidis]

We had a nextjs app on v9.3.6 packaged with the pkg.
We have 1 server side rendered page and 3 static pages.

When we upgraded to version 9.4.0 the app seemed to worked perfectly on dev mode. But when we packaged using the pkg we couldn't access the 3 static pages anymore. We got a 404 when we tried.
We converted those static pages into server rendered by adding an empty getInitialProps into them and the problem was gone. We didn't get 404 when we tried to access them.
This is not a solution that we liked and also didn't work well for our custom 404 page because of this issue

Has anybody faced something similar? Any help would be much appreciated