Timeline size not save after Shotcut restart

What is your operating system?
Windows 10 2004

What is your Shotcut version (see Help > About Shotcut)? Is it 32-bit?
64bit

Can you repeat the problem? If so, what are the steps?
Hi all! I wanted to report a fastidious bug. I modified timeline size and saved my visual preset. But when i restart shotcut the timeline size not remain.
Example:
My custom timeline size:
http://imgbox.com/K1l6y6Zm

After restart Shotcut:
http://imgbox.com/2KfqYger