One of my players is getting a spell called Arcane Arrow that is definitely a homebrew spell. I have double checked his sources and he has home brew content de-selected. He made his character and the d & d beyond app. I'm going to try to have him delete the character and remake it on the website and see if the same issues persist.

The same issue will persist. The only ways to stop that spell appearing on that character sheet are:

• Whoever ha it in their Homebrew Collection to remove that spell from their collection.
• Whoever wrote that spell must remove the subclasses from the list of classes attached to that spell.