This happens because the routes are at the same branch level of the tree. The dynamic route /[shopname] can accept anything as the route so when you visit /admin, it's considered to be a dynamic page in that dynamic route. You would need to move the dynamic route within a nested route. You could move it within something like shop/[shopname] and it should then work as intended.

thanks @Giant panda unfortunately I guess there is no way to prioritize static routes first right?

Not that I know of.

thanks very much!

i can't reproduce it

this is just plain wrong. if the issue in question is not due to a misconfiguration by the OP, this is a nextjs bug

My mistake then. Does next prioritize static routes before trying to use a dynamic route?

yes

static routes are taken first before any dynamic route handling is done

My bad then. I had a similar issue as OP a while back and thought that wasn't the case. May have been some misconfiguration.

Wait maybe I need to update nextjs

thanks @Sloth bear @Giant panda 12.2.2 -> 13.0.2 solved this