Campaign Builder link issue

Hello to everyone,
I am building up a few campaign flows. All good until this morning, saving one of the biggest i found out the editor did not actually save the links between the steps on “apply”.
I have also noticed that until a certain number of links it get updated but beyond that nothing.
More or less it does not save more than 90 links.

I have been a little through the documentation and i can not find anything about it.
Can someone point me in the right direction?

Thank you
A.

I have found the same issue someone rose here