There is a new option on the Outstanding Grants by Fund report that will display the $0 ending grants:

User-added image

Since the report is titled "outstanding grants", it was decided that the box would not be checked by default. However, checking the box will display all the grants in the time period selected regardless of their ending balances.

If you prefer to have the box checked by default, then check the box and add a Saved Report with the "default" label and that will automatically load the checked box setting when the report is loaded.