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Merge Function Throwing errors if there is a NULL value

SO FRUSTRATED.  The latest update to Power Bi desktop prevents my data from loading if any left join merged queries produce a null value.  I use TON of left join merged queries and they all obviously produce null values because that is the WHOLE point of a left join!!  Now I cannot load in ANY data via my pre-built template.  This is an urgent request because I need a template fully built out for a meeting friday.

 

Issue one: Left Join Merged Queries followed by a Table.AggregateTableColumn, List.sum function.  Because not every keyword (left table) has a matching lead (right table), I get a null value on some of the keywords.  Desktop application used to simply load a "null" value in the cell.  Now desktop application is giving me the following error

 

Expression.Error: We cannot conver the value null to type Logical.

Details:

Value=

Type=Type

 

Issue two: Left Join Merged Queries followed by a Table.ExpandTableColumn function.  The data looks fine in the queries window, but when I try and load it, I get the following cryptic message: 

 

Network Leads Merged

OLE DB or ODBC error: [Expression.Error] We Cannot conver the value null to type logical.

 

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