Hi @Erik_Arntzen and welcome to the Forum!
Thank you for taking time to report this issue! Unfortunately I don’t have access to the link you have provided but from what I understood, when you create a project from a Template, tasks are been schedule during the weekend, is that correct?
To prevent this from happening, you simply need to toggle off the option “schedule tasks on weekend” from the schedule project dates screen when creating the project.
I hope this helps but if this doesn’t resolve the issue, I would encourage you to contact our Support Team, who will be able to take a closer look into this and assist you further. When you do, please make sure to provide them the URL provided here and the URL of the template used to create the new project.
Looking forward to your reply Erik!