I have started seeing this message since I added to my code a method that is ran both on server and client (for optimistic UI purposes). This method basically computes some data and saves it in a collection.
I found this issue raised by Mitar https://github.com/meteor/meteor/issues/3025 with the same error but he is creating collections on the fly inside of an observer. As far as I can tell, I am not doing that…
Anyone has an idea of why this could be happening or advice to isolate the issue ?