That's how I do it KoN. That seems strange.
Did you hit enter once you were in the seat after the restart, then TIR center?
IIRC it's saved in the snapviews.lua. Perhaps rename the current one (to snapviews.bak) then restart DCS and it will regenerate a new snapviews.lua. Then try setting your default cockpit view again and see if it works.
Hope that helps.
Just had a thought... You're not using TIR to set your zoom and position right? If so, that's the issue. You need to set your view using the keyboard commands. Just double checking...