Magic sheets not always opening in same view size/image location

Ion (10 year old)

2.6.3

 

a visiting show left some magic sheets for me, and they've been adapted to suit my effects and colour palettes.  However, when booting up the console, they don't always open in the correct view.  sometimes they are zoomed in so you can't see the whole image, and/or the image has drifted off of centre.

They open in the bottom half of a split screen.  4 tabs, 1 for each MS.  Each Magic sheet looks identical (3 x 10 columns).  There are 4 macro buttons that allow you to swap between MS/Tab A, MS/Tab B, C and D.  (each MS is a different effect version, referencing the same CP)

The Tab Lock button is locked, so the used can't mess with image by accident.

But once in a while, when I boot up, the top MS is OK, but if I tab or Macro Button to the others, those are "corrupted."  Once I re-edit them during the event, they seem stable.

 

Thoughts?

Thanks, Andrew

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