so this looks like a small issue with tab names
2 tabs are transferred from the Income sheet to the Budget vs Actuals master sheet
income detail
forecast detail
See images below
It appears that in the income analysis
tab on the master sheet there is a wrong name on the formula - see image below
The correct name should be forecast detail
- you will need to change this in the formula - see image below
Once you do the fix on the formula remember to drag the formula down the columns so that it applies to all the cells in the column - all columns marked as Forecast will need this change applied
Hope this helps