Rockbox

I am writing a theme for Sansa Clip Zip. In my .sbs I defined two different custom viewports and I want to switch between them depending on current screen. It works in all but two cases - the Track Info screen uses the same viewport as the Context Menu and the Pitchscreen seems to inherit the viewport setting from the WPS. Here is the sample of the code:

%?cs<%VI(small)| # Menus

 %VI(small)| # WPS
 %VI(small)| # Recording screen
 %VI(small)| # FM Radio screen
 %VI(small)| # Current Playlist screen
 %VI(small)| # Settings menus
 %VI(small)| # File browser
 %VI(small)| # Database browser
 %VI(small)| # Plugin browser
 %VI(big)| # Quickscreen
 %VI(big)| # Pitchscreen (ignored - it uses the same %VI as WPS)
 %VI(small)| # Setting chooser
 %VI(small)| # Playlist Catalogue
 %VI(small)| # Plugin
 %VI(small)| # Context menu
 %VI(small)| # System Info screen
 %VI(small)| # Time and Date screen
 %VI(small)| # Bookmark browser
 %VI(small)| # Shortcuts menu
 %VI(big)%Vd(status_bar)%Vd(list_title)> # Track Info screen (%VI ignored - it uses the same %VI as Context Menu)

### UI viewports ###
%Vi(big,0,10,96,86,-)
%Vi(small,5,26,91,70,-)

########### end of code ###########

%VI seems to be the only setting which is ignored as the %Vd tags in the given example are respected.
I am currently using the 29e51a1-130112 build for the UI simulator and the fa6dc05-130115 build for the actual device. I didn't examine any other hardware or simulator, but I guess such thing is not hardware-related, so I set "Player Type" in this report to "All players".