Yes, damp
Scott’s Turfbuilder 3 weeks before planting
So it has been how many weeks? Does Hancock give a "typical" germination day/week range? Sometimes seed germination takes longer than we'd think.
• was the seed burried at all or just left on the soil surface ?
•damp ... as in kept that way all day or watered til damp once or twice a day ?
•The Turf Builder, which one? ... they make so many. A fertilizer for established grass vs a starter fertilizer can be an issue. Also just check to make sure there isn't some sort of
active ingredient listed that is some type of herbicide.
Here is a huge reason I believe there is something else in play ... technically seed doesn't "go bad". Germination chances will decrease over many many years, but something is still going to germinate. Here around Phoenix, many big box stores have the seed they sell sitting on shelving outside in 100° temps for months and it still germinates. Zero germination would be extremely odd.
Having a test pan/pot with kept damp soil, in 55°-85° range and zero germination is on a similar level of unlikely to being a solo ticket purchaser/winner of a global lottery worth a trillion dollars.
There has to be something else in play.