Desktop reports errors in a query, but show errors in Power Query is blank.

I think I have this solved, so mostly recording this for other people to find.

On loading a query, many errors were reported. However, when I chose to show errors, the table in Power Query editor that is supposed to show errors came up blank.

Inside a Table.Group, I had an implicit cast. The calculation could return a fractional value, but I set the return type as integer. After changing the cast to explicit, the query no longer reported errors on load to Desktop.

// Before: causes load error.
{"Adjusted GLH", each List.Sum([Adjusted GLH]), Int64.Type  }

// After: Explicit cast removes load error.
{"Adjusted GLH", each Int64.From(List.Sum([Adjusted GLH])), Int64.Type  }

Is there some other way I could have viewed the errors as seen by Desktop if the Power Query editor wouldn't show them to me?