Minecraft version: 1.12.2
Wizardry version: 4.2.7
Environment: Singleplayer

Issue details:

look at this two pictures.I can't unlock the schedule of thuamcraft
because the fireballs' texture was changed

Other mods involved: thaumcraft

Thanks, various people have pointed this out. I will add the parrying behaviour to the custom fireballs, which should fix the problem. In the meantime, you can temporarily disable the replaceVanillaFireballs option in the config to allow you to use vanilla fireballs.