Issues with preserved pricing

After scheduling price changes for November 23 and selecting to "Preserve current price for existing subscribers", we are seeing around 31% "renewals" coming through at the new price on later app versions following the price change. Has anyone else experienced this?

Could this be something to do with a payment being marked as a renewal in the summary sales report but not actually being a renewal (and perhaps a reactivation instead?)

Thanks

Issues with preserved pricing
 
 
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