To be fair, ALM and DCA also sometimes does not work if you change the formula in the DCA line item. This is particularly annoying when the DCA line item is attached to a large number of line items in the model. What you basically have to do then is to remove all DCA from the model using the ‘Line items’ tab under ‘Modules’, synch the model, then add the DCA again, and then re-synch.
This does not happen every time, so I have no idea what type of formula changes that triggers it. But it's really annoying and a big time sink.
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