Count, in a range along a row, instances (that occur only on/before today) of a value

[Eusr]

I have previously learned to count, in a range down a column, instances (that only occur on/before today) of a value or values, where the dates headed up columns.
Data appeared as time progressed, under pre-set dates. Hence the formula counted data in each column leading up to today's date.

That was a post in this forum entitled "only-count-cells-with-any-one-of-each-of-several-separate-values-on-dates-before-today"

Now, the same operation is needed with one difference: the data are in a single row across many columns, including in columns with dates after today. It is needed not to count any values in columns with future dates (even though those cells have been pre-filled optimistically with desired values that also happen to occur most of the time, so that as data comes in, only the less desired values need to be added by hand). The difference is that the formula needs to count, along a row, values with a certain attribute or attributes, for every date up to today.

Here is what I have tried, without success:

=IF($D3:$P3<=TODAY(),COUNTIFS($D24:$P24,$Q$3),"")

A #VALUE error is generated.