ANSWER FOUND! It's quite simple. This issue is if your working on the "Project Map" rather than the "View Map" the Schedule will inherit any random Renovation Filter which might be active in my case one that is not showing new elements, just place that empty schedule on the View Map" and save it with the desired Renovation Filter
AC28–3110 INT FULL/ Sonoma 14.6.1 / M2 Max 12 Core/ 64 GB / 38 Core GPU