Yes, it is a VLookup, looking at text fields, not numeric. AW6 either shows the text lifted from elsewhere, or it is blank (because the source of where the VLOOKUP is pulling data from is a blank cell,
I don't think it is really blank. If the column it was returning was really blank, it would actually return a 0.
However, if the column that it is returning has spaces, it would return spaces (which maybe appear to be blank, but really aren't).
To prove this, in one of these instance where AW6 is supposedly returning a blank, trying putting this formula somewhere:
=LEN(AW6)
If AW6 was TRULY returning a blank, this formula will return a 0.
If this formula is returning anything else other than a 0, it is, in fact, NOT actually blank.
It is important to note the difference between blank (nothing) and a space (something).
If is it just regular blank spaces, see if this formula returns a 0:
=LEN(TRIM(AW6))
If it does, then those blank spaces can be handled to do what you want by using the formula I posted for you up in my first reply.
If it does not return a 0, then you have some other special, non-visible characters in there (which is often seen from data that comes from the internet or some non-Excel source).