150 projects created using 1 template, template missing tasks, is there a way to fix this without redoing?

I created a template from an intial project, I then saved as a template. It appears that 1/2 of the tasks did not save into the template. However before I realised I created 150 projects, which now live in portfolios and I need to know if there is a way to fix this before I restart setting up the projects

Welcome to the forum @Alexia_May

I might know a way. This requires a bundle though. Do you have an Enterprise license?