Since a lot of the cast "actions" in the game use the same VFX source path, installing this 
will change the casting vfx from other jobs/npcs, and to my knowledge there's nothing that can be
done to fix this (if I figure something out I'll of course fix this ASAP).

The affected casting vfx from what I could test are
BLM (of course)
RDM (Verfire and Verthunder related skills)
BLM and RDM NPCs

If you're not bothered by this just instal the mods normally!

*only the CASTING vfx from the other jobs will change, the actual skill VFXs will stay the same, they
only affect BLM.