Ok…this is what’s happening.
Firstly, my DB is doing the opposite of what it should be. As per a previous suggestion, I removed the memo field from the grouped query, created a new query and added the memo field but it was still truncating.
I then did a cleanup of the entire DB and removed what appeared to be unnecessary steps, created the query again WITH grouping including the memo field which is set to Last and there was no truncation when I ran the query.
The memo field is in the table TBLDwgRegisterDtls and is named RevNotes.
In the query QRYSmryDwgRegRpt, RevNotes, in datasheet view, is now LastOfRevNotes but in design view it is just RevNotes.
In design view of the report, the field is LastOfRevNotes. When I run the report, the parameter is asking for RevNotes. If I hit ok without entering a parameter, the report runs correctly with all information showing in the memo without truncation