On one subsite post preview doesn't work.
When I try to preview a post I get a 404 error because urls like /?p=148&preview=true are redirected to /?p=148.
I tried to reset permalinks but the problem is still here.
I don't know if it might be relevant but it was a single site I imported into my multisite network, using Snapshot.
If I publish the post it's ok, it works as expected.
I think this thread should actually be moved inside plugin support for Domain mapping.
This subsite is mapped and I think the problem is related to that. Thanks :slight_smile: