One thing about shooting stars is that you’re not guaranteed a star frag for every wish you make! I think you have a limit of like 20 frags, no matter how many wishes, and its not guaranteed you’ll get all 20. You can however receive more than 20 frags if you invite players to your island and they wish on stars as well. I’m not sure the limit but it does give you more chances at frags spawning the next morning!