This sounds a lot like my daughter in middle school. She was crazy about art. She won a National Schoalstic Arts award and a huge county-wide art competition with a big cash prize in middle school. Picture in the paper too. Then, nothing after 8th grade. She taught herself coding, began story-writing, and her interests changed. She didn’t enter any competitions and did random, ordinary ECs like Mock Trial. Her only consistency was to continue to play her musical instrument.
She has just finished her freshman year of college and is very happy. She got accepted to a bunch of wonderful schools, despite my fears that her boring ECs might undermine her chances. She never codes anymore. She has taught herself calligraphy and still loves sketching. I think you just have to let your daughter find her way. The things she really enjoys, she will stick with.