That should be expected as it is a natural principle. Most projects are dead because of poor management by the team members because they lack the expertise in crypto and failed to seek for counsel from experts. Also, projects with no backing product or tangible ideology behind is likely to go down the drain as it will lose the interest of potential investors.
Because the project did not reach the target money or the soft cap, and because the investors is not interested to the campaign that's why they did not invest to it or maybe because the project platform is not great.