Server Pregen not loading smoothly on client

- I'm running my client from the same machine as my server. - I originally had loaded chunks from the client without installing DH on the server - I haven't deleted anything So now when I ran a pregen on the server with a radius of 1,024 chunks, the client appears to load everything the client used to have, but it's not loading everything the server pre-generated uniformly. Should I be finding and deleting some kind of .sqlite file somewhere in my player data? Should i remove the Distant_Horizons_server_data file in my Roaming folder?? Should I just be heading to the borders of what previously generated and afk each time (that sounds horrible)?