so your description says client only but when I play on a server there is no lighting around me when holding torch. Also something with this mod an dokucraft 1.19.2 causes sky to flicker

could you list every mod your using for both scenarios as well as the server you were playing on? Were you using rubidium or shaders, as those both are unsupported? (sorry for the delay in response lol)

Ive done a little testing and found that certain resource packs have issues with the lighting, the running theory is that resource packs that mess with the vanilla shaders break the mod (such as the waving leaves in dokucraft). I recommend disabling packs that dont work with it until i can come up with a fix.