For instance
- I play Fraying Sanity, an Enchant Player Aura Curse (no Attach message as Auras cast from hands have target instead)

• I play Copy Enchantment, it enters the battlefield as a copy of Fraying Sanity. As per the rules, it becomes attached to a player of your choice. A prompt appears “Attach Fraying Sanity”.

You play Copy Enchantment, it enters the battlefield as a copy of that previous Copy Enchantment that is currently a Fraying Sanity. All works well in gameplay, but now the message is buggy “Attach 1, CardId”

I have tried using Fraying Sanity and multiple combinations of Copy Enchantment, Estrid’s Invocation and/or Mirrormade. I haven’t noticed if the number next to the “Attach” increases if I make a copy of the third+ order.
Likely affects all Curses, and maybe all Auras, but I haven’t tested it.