Explain the problem as you see it
Every time I close the dock and open it again it gets reset to default width (too narrow for being useful in my case). I usually work with a dock being closer to 50% of window size.
Why is this a problem for you?
Every time I open the node in the dock on the right side of the screen I need to readjust its width.
Suggest a solution
Make Side Dock width constant until changed by user, remember the last used width and don't revert to default narrow dock.