I don’t know is this an issue or just me not knowing hot to use it properly but I think something is wrong here. I tried to find a solution and I bumped on few topic mentioning same stuff but nothing in particular.
Problem is when I start writing some automation it is always as “fill to end” mode, regardless in witch mode I currently am. Even when I am in “fill loop” mode, and writing automation between locators, still cubase writes it to the end. Actually, not always, when there is some automation points in front of currently written automation it works how it should. So possible solution is to put an automation dot on every automation track at the end of a project. That looks a bit silly and much time consuming if you have a lot of tracks and plugins with much values that you wish to change!