Yes it's a VERY known issue just take the rose with vines spellcard out of her deck for the moment and replace it with something else until Tasoforo makes a new patch to fix it.
Thank you for your help
Version 1.02 is out now! Supposedly fixes Koishi, but I can't install it, it gives me an error message after I selected the path. It tells me something about characters like slashes, question and exclamation marks. Any ideas?
Switch your locale to english to install it. Why, because for some computers the slashes are replaced with yen signs. :VAfter you patch the game you can go back to Japanese locale.