I have a flow that has been working for quite awhile that has recently failing with this error.
Unable to process template language expressions in action 'Convert_Item_Age_to_Integer' inputs at line '0' and column '0': 'The template language function 'int' was invoked with a parameter that is not valid. The value cannot be converted to the target type.'.
The flow is getting the items from a SharePoint list. One of the columns is a calculated column with this formula: LastComplete is a Single Line of Text formula. Understand that this was working correctly for a long time and nothing has been changed in the app, the list or the flow.
=IF(ISBLANK([Last Complete]),"",DATEDIF([Last Complete],TODAY(),"d"))
Here is the set of flow actions: The error is happening on the convert item age to integer action.
I am at a loss as to why this just stopped working out of the blue.

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