In version 20.5.90, there are serious errors in this report. Here is a sample report:
But only 2 inventory locations are defined:
The one now named North warehouse (edited) was previously named North warehouse. Editing the name did not change it on the report, it added the new name. But no transactions have been entered since editing the name.
Further, drill-downs are erroneous. Clicking the 12 for the table lamp in the north warehouse produces the following, irrespective of which general ledger engine is enabled:
Clicking the 5 for the north warehouse (edited) produces exactly the same thing.
Clicking on 10 for the lamp kit produces an empty screen, as do all other quantities under the north warehouse column: