Is there a known issue in QXP 7.5 with named boxes?

Is there a known issue in QXP 7.5 with named boxes?

I have scripts–which address boxes by name–that run fine in 6.5, but are crashing when I try to use them in 7.5

First instance:


tell document 1 of application "QuarkXPress"
	activate
	tell text box "docbox1" of current spread
		tell story 1
		       set style of (every text) to {on styles:{strikethrough}}
		end tell
	end tell
end tell