Whenever reloading Magic, I'm getting a strange issue where I get the message "There was an error checking spell [spellname] for issues", but the error message only appears if I reload while not holding a wand. The error message does not occur if I am holding a wand when reloading. Video displaying the issue here.

When reloading without a wand, this error appears in the console:

The spells causing the error use the Selector action to apply attributes to a held wand, so I am wondering if this is what causes the issue. The spells in question also fail completely if cast without holding a wand, giving an error in the console as well:

I'm currently running:

• Minecraft 1.20.4
• Paper version git-Paper-"f4c7d37"
• Magic 10.9.1 - 818b50e

The spells that are causing these issues are attached below, along with the required attributes.
(Be warned, they are very large and use many custom attributes.)

CS__craft_projectile is the spell file
CS__spell_attributes is the attribute file
Spell Errors.zip