Hey @Guillaume_Soto,
does the task template have subtasks also? If so then I recommend double-checking those too to ensure you are not added as a collaborator there.
Also the project to which the tasks get added to I recommend checking the notification settings there as maybe you have all notifications enabled so you are always notified when a new task is added.
Apart from that if you have any rules set up in this project I recommend checking those as well.
If nothing of the above applies and the problem is still happening then I suggest reaching out to support: How to contact our Support Team ✉