Expansion Packs CPI file won't load T5

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When I make a USB of the Expansion packs the cpi file that is made from these packs will not load into the tyros 5, a message in the tyros screen say's "cannot load file" Should I delete all my packs from YEM upgrade the YEM to 2.5 and reload all the expansion packs? I ask here first because maybe there is an easier way. All the problems I have had with my keyboard recently seems to stem from this cpi file.
thanks in advance

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