Okay, I think I solved this problem after a break with a good restaurant burger and beer. It could be a trap for others, so I'll try to explain in simple terms.

When I created the relationships between the tables (like Log and User), I followed some advice I heard somewhere to start with the KEY for the primary table (User) and drag to the KEY which is the foreign table (Log). I think I have that right as one User record ID can be used in many different Log records, but not vice versa (one Log!UpdtUserID isn't found in many User records).

The one relationship link shown in my first image just happened to have the correct Left table, probably because I was testing it in different ways, but the other links were wrong (like Job was the Left table in both links).

As a result, most of the tables, other than Log, were the Left table. I deleted the relationship links and did them again, this time dragging from the Log table to the others and then the second choice for the "Include ALL records from..." option.

And it works as shown in the image below.

For the eagle eyes that are figuring out the second set of images:
1) I hid some of the fields in the query.
2) There is a bug that's creating a Menu entry even though the person didn't log in.
3) You can see the date and how many login failures there were in the Short note column.
4) See in records 8227 & 8228 the record was created by the Login form while record 8229 was created by the Menu form. Can you guess why this is so?

These samples were taken from the Access Development Shell (ADS), a description of which can be found in the Access Template Marketplace here in Richard's site.

Outer joins should either point in the same direction as all other outer joins, or point away from other outer and inner joins.  For instance:

Table1 --> Table2 --> Table3     OK: all outer joins point in the same direction
Table1 <-- Table2 --> Table3     OK: all outer joins point away from other outer joins
Table1 <-- Table2 --- Table3     OK: outer join points away from inner join

Table1 --> Table2 --- Table3     Not OK: outer join points towards inner join
Table1 --> Table2 <-- Table3    Not OK: outer joins point towards other outer joins