Thanks Leonardo for the answer of my question and pointing me to this post.

This is a temporary fix because in my opinion that option to enable or disable the synthetic should always be there. I'm having a lot of time outs that i didn't have when Synthetic was not a thing, so It would be much simpler not to have to edit the xml, maybe msp360 are reading this and make the option always there in future builds.

Thank you

Hello Leonardo

Can you tell me where can i find the plans xml?

@Steve Putnam
I found this post about the problem with Forever Forward Incremental and i can say that even with images backup, when it begins to merge the old incremental with the full it does a synthetic backup everyday that tooks insane hours to finish if we have a 1tb backup size.

I was taken by surprise by this behavior and if so, Forever forward incremental is not a solution to consider. It almost like making a 1tb full backup everyday. Insane!!