UPDATE 2023-11-16: 

11:28: SEEMS WE CAN CONFIRM IT IS BACK TO NORMAL BEHAIVOUR... Waiting for an official feedback to understand the root cause but the important is users can work again as normal... THANKS TO SUPPORT Team that for sure they have been working on the diagnosis and resolution... Once I have feedback about what could cause the problem I will update...

Seems today our tests started to work properly, now waiting from our PM Team to make their own tests and I will be updating here.. Keep fingers crossed, I will be updating the result of the tests)

2023-11-15:

Hi all.. we have just realized we are not able to create new projects nor add task to existing projects based on Templates that contain questions. Also am not being able as admin to transfer the ownership to myself to try to create a new revision.. I have created a New template WITH QUESTIONS (simple template, just 4 tasks) and it worked... My Program Manager was working on the templates changing tasks and creating new dependencies...but also our consultant was able to replicate the issue on their tenant with a template that no one have updated/modified recently so seems is not to be related with the changes they made yesterday. In fact we tried to demote and reactivate the previous Release and also not working.... we are creating and SR and a Critsit but anyone else experiencing issues launching projects with templates that include questions after the UPGRADE of 4th of November? we have just realized today about this problems so we are not sure if are linked to the upgrade or to the changes on templates... IT IS VERY URGENT IF AT LEAST I CAN HAVE THE CONFIRMATION ABOUT OTHER Tenants under problems ;)...Thx !!

BTW: I cant even clone the template so mmm we are on pretty urgency as creating from "scratch" templates with bookmarks, deliverables, and more than 30-50 tasks is not 5 min task.. ;)))